noxious

adjective

nox·ious ˈnäk-shəs How to pronounce noxious (audio)

: physically harmful or destructive to living beings

noxious waste

noxious fumes

: constituting a harmful influence on mind or behavior

especially : morally corrupting

noxious doctrines

: disagreeable, obnoxious

this noxious political scandal

H. L. Ickes

noxiously adverb

noxiousness noun

Example Sentences

mixing bleach and ammonia can cause noxious fumes that can seriously harm you noxious smog that for years has been encrusting the historic cathedral with soot

Recent Examples on the Web Near-record amounts of seaweed are smothering Caribbean coasts from Puerto Rico to Barbados, killing fish and other wildlife, choking tourism and releasing stinky, noxious gases.

Fox News, 4 Aug. 2022 Near-record amounts of seaweed are smothering Caribbean coasts from Puerto Rico to Barbados, killing fish and other wildlife, choking tourism and releasing stinky, noxious gases.

Dánica Coto, Anchorage Daily News, 3 Aug. 2022 Letting nature take its course is an option but noxious gases that naturally build up can prove dangerous.

Heather Chen, CNN, 23 May 2022 Large quantities of dry chemicals are needed to smother lithium ion battery fires, which burn hotter and release noxious gases in the process.

Aurora Almendral, Quartz, 21 Feb. 2022 Firefighters tested the air quality inside the home and found no noxious gases, but that was after other emergency personnel had been in and out, opening doors, which could have caused any existing gas to dissipate, an official said.

Charles Trepany, USA TODAY, 26 Jan. 2022 According to Telegram & Gazette, authorities at the scene found no signs of noxious gases and did not suspect apparent trauma had occurred.

Dory Jackson, PEOPLE.com, 25 Jan. 2022 But people were warned to stay away because of the risk from noxious fumes and hot magma.

Morgan Coates, Washington Post, 3 Aug. 2022 The burn pits emitted noxious fumes that researchers have shown can lead to health problems, including neurological issues and lung cancer.

Ben Kesling, WSJ, 16 June 2022 See More

Word History

Etymology

Middle English noxius, borrowed from Latin noxius "guilty, delinquent, harmful, injurious" (derivative of noxa "injurious behavior, harm, mischief") + -us -ous; noxa derivative (perhaps with -s- as a desiderative suffix) from the base of nocēre "to damage (things), injure, harm (persons)," going back to Indo-European *noḱ-éi̯e- "destroy" (with semantic weakening in Latin), whence also Sanskrit nāśáyati "(s/he) destroys," causative derivatives from a verbal base *neḱ- "disappear, pass out of existence, perish," whence, with varying ablaut grades, Sanskrit náśyati "(s/he) is lost, perishes," Avestan nąsat̰ "has gone away, is lost," Tocharian B näk- "destroy," (in middle voice) "disappear, be destroyed"

Note: The Indo-European verbal base *neḱ- is also the source of a root noun attested as Latin nec-, nex "violent death, killing"; see necro-.

First Known Use

15th century, in the meaning defined at sense 1a

noxious

adjective

as in poisonous

bad for the well-being of the body mixing bleach and ammonia can cause noxious fumes that can seriously harm you

Synonyms & Similar Words

Relevance

poisonous
toxic
unhealthful
unwholesome
noisome
insalubrious
unhealthy
sickly
insanitary
unsanitary
lethal
unhygienic
fatal
germy
nonnutritious
mortal

Antonyms & Near Antonyms

healthful
sanitary
healthy
hygienic
nutritious

as in harmful

causing or capable of causing harm noxious smog that for years has been encrusting the historic cathedral with soot

Synonyms & Similar Words

harmful
dangerous
damaging
adverse
detrimental
poisonous
bad
hazardous
pernicious
injurious
baneful
deleterious
evil
infectious
nocuous
baleful
prejudicial
hurtful
wicked
mischievous
destructive
ill
hostile
deadly
venomous
pestilential
lethal
infective
insidious
unsafe
pestilent
pestiferous
sinister
ominous
unfriendly
inimical
threatening
risky
menacing
noisome
unwholesome
unhealthful
perilous
malignant
unhealthy
contagious
fatal
nasty
ruinous
unsound
parlous
imperiling
killer
jeopardizing
imperilling

Antonyms & Near Antonyms

innocuous
harmless
benign
beneficial
anodyne
safe
useful
inoffensive
innocent
advantageous
favorable
good
salubrious
healthful
wholesome
salutary
propitious
curative
remedial
healthy
palliative
sound
helpful
hurtless
nonpoisonous
nontoxic
secure
noninfectious
benignant
noncorrosive
nonlethal
nondestructive
nonfatal
nonpolluting
nonvenomous

as in disgusting

causing intense displeasure, disgust, or resentment the website reserved the right to remove and report hate speech and other noxious types of postings

Synonyms & Similar Words

disgusting
ugly
awful
sickening
horrible
hideous
obscene
obnoxious
nasty
dreadful
offensive
shocking
unpleasant
loathsome
odious
evil
noisome
repulsive
repugnant
abominable
revolting
horrid
repellent
nauseating
distasteful
abhorrent
appalling
gross
vile
undesirable
rancid
gruesome
scandalous
horrific
foul
terrible
horrendous
nauseous
disturbing
fulsome
unwanted
objectionable
hateful
disagreeable
repellant
monstrous
unwholesome
detestable
contemptible
horrifying
unhealthy
miserable
despicable
heinous
unsavory
ghastly
brackish
unwelcome
grim
execrable
unspeakable
lurid
nightmarish
frightful
exceptionable
unholy
sick
barbarous
grisly
sickly
atrocious
ungodly
dislikable
uncivilized
macabre
dislikeable
lousy
sickish
upsetting
unchristian
hard
distressing
off-putting
grewsome

Antonyms & Near Antonyms

innocuous
desirable
pleasant
inoffensive
acceptable
delightful
sweet
delicious
agreeable
attractive
congenial
alluring
pleasurable
delectable
heavenly
enjoyable
luscious
satisfying
palatable
appealing
nice
savory
dreamy
felicitous
gratifying
pleasing
welcome
savoury
dulcet
unobjectionable
likable
inviting
likeable
darling
blessed
blest
salubrious
healthful
wholesome
unexceptionable
salutary
healthy
restorative
delightsome

Synonym Chooser

Some common synonyms of noxious are baneful, deleterious, detrimental, and pernicious. While all these words mean "exceedingly harmful," noxious applies to what is both offensive and injurious to the health of a body or mind.

noxious chemical fumes

The words baneful and noxious can be used in similar contexts, but baneful implies injury through poisoning or destroying.

the baneful notion that discipline destroys creativity

In some situations, the words deleterious and noxious are roughly equivalent. However, deleterious applies to what has an often unsuspected harmful effect.

a diet found to have deleterious effects

While the synonyms detrimental and noxious are close in meaning, detrimental implies obvious harmfulness to something specified.

the detrimental effects of excessive drinking

The meanings of pernicious and noxious largely overlap; however, pernicious implies irreparable harm done through evil or insidious corrupting or undermining.

the claim that pornography has a pernicious effect on society

单词	noxious
释义	noxious adjective nox·ious ˈnäk-shəs 1 a : physically harmful or destructive to living beings noxious waste noxious fumes b : constituting a harmful influence on mind or behavior especially : morally corrupting noxious doctrines 2 : disagreeable, obnoxious this noxious political scandal H. L. Ickes noxiously adverb noxiousness noun Synonyms insalubrious noisome sickly unhealthful unhealthy unwholesome See all Synonyms & Antonyms Example Sentences mixing bleach and ammonia can cause noxious fumes that can seriously harm you noxious smog that for years has been encrusting the historic cathedral with soot Recent Examples on the Web Near-record amounts of seaweed are smothering Caribbean coasts from Puerto Rico to Barbados, killing fish and other wildlife, choking tourism and releasing stinky, noxious gases. Fox News, 4 Aug. 2022 Near-record amounts of seaweed are smothering Caribbean coasts from Puerto Rico to Barbados, killing fish and other wildlife, choking tourism and releasing stinky, noxious gases. Dánica Coto, Anchorage Daily News, 3 Aug. 2022 Letting nature take its course is an option but noxious gases that naturally build up can prove dangerous. Heather Chen, CNN, 23 May 2022 Large quantities of dry chemicals are needed to smother lithium ion battery fires, which burn hotter and release noxious gases in the process. Aurora Almendral, Quartz, 21 Feb. 2022 Firefighters tested the air quality inside the home and found no noxious gases, but that was after other emergency personnel had been in and out, opening doors, which could have caused any existing gas to dissipate, an official said. Charles Trepany, USA TODAY, 26 Jan. 2022 According to Telegram & Gazette, authorities at the scene found no signs of noxious gases and did not suspect apparent trauma had occurred. Dory Jackson, PEOPLE.com, 25 Jan. 2022 But people were warned to stay away because of the risk from noxious fumes and hot magma. Morgan Coates, Washington Post, 3 Aug. 2022 The burn pits emitted noxious fumes that researchers have shown can lead to health problems, including neurological issues and lung cancer. Ben Kesling, WSJ, 16 June 2022 See More Word History Etymology Middle English noxius, borrowed from Latin noxius "guilty, delinquent, harmful, injurious" (derivative of noxa "injurious behavior, harm, mischief") + -us -ous; noxa derivative (perhaps with -s- as a desiderative suffix) from the base of nocēre "to damage (things), injure, harm (persons)," going back to Indo-European noḱ-éi̯e- "destroy" (with semantic weakening in Latin), whence also Sanskrit nāśáyati* "(s/he) destroys," causative derivatives from a verbal base neḱ- "disappear, pass out of existence, perish," whence, with varying ablaut grades, Sanskrit náśyati* "(s/he) is lost, perishes," Avestan nąsat̰ "has gone away, is lost," Tocharian B näk- "destroy," (in middle voice) "disappear, be destroyed" Note: The Indo-European verbal base neḱ- is also the source of a root noun attested as Latin nec-, nex* "violent death, killing"; see necro-. First Known Use 15th century, in the meaning defined at sense 1a Kids Definition noxious adjective nox·ious ˈnäk-shəs : causing harm noxious fumes Medical Definition noxious adjective nox·ious ˈnäk-shəs : physically harmful or destructive to living beings noxious wastes noxious adjective 1 as in poisonous bad for the well-being of the body mixing bleach and ammonia can cause noxious fumes that can seriously harm you Synonyms & Similar Words Relevance poisonous toxic unhealthful unwholesome noisome insalubrious unhealthy sickly insanitary unsanitary lethal unhygienic fatal germy nonnutritious mortal Antonyms & Near Antonyms healthful sanitary healthy hygienic nutritious 2 as in harmful causing or capable of causing harm noxious smog that for years has been encrusting the historic cathedral with soot Synonyms & Similar Words harmful dangerous damaging adverse detrimental poisonous bad hazardous pernicious injurious baneful deleterious evil infectious nocuous baleful prejudicial hurtful wicked mischievous destructive ill hostile deadly venomous pestilential lethal infective insidious unsafe pestilent pestiferous sinister ominous unfriendly inimical threatening risky menacing noisome unwholesome unhealthful perilous malignant unhealthy contagious fatal nasty ruinous unsound parlous imperiling killer jeopardizing imperilling Antonyms & Near Antonyms innocuous harmless benign beneficial anodyne safe useful inoffensive innocent advantageous favorable good salubrious healthful wholesome salutary propitious curative remedial healthy palliative sound helpful hurtless nonpoisonous nontoxic secure noninfectious benignant noncorrosive nonlethal nondestructive nonfatal nonpolluting nonvenomous See More 3 as in disgusting causing intense displeasure, disgust, or resentment the website reserved the right to remove and report hate speech and other noxious types of postings Synonyms & Similar Words disgusting ugly awful sickening horrible hideous obscene obnoxious nasty dreadful offensive shocking unpleasant loathsome odious evil noisome repulsive repugnant abominable revolting horrid repellent nauseating distasteful abhorrent appalling gross vile undesirable rancid gruesome scandalous horrific foul terrible horrendous nauseous disturbing fulsome unwanted objectionable hateful disagreeable repellant monstrous unwholesome detestable contemptible horrifying unhealthy miserable despicable heinous unsavory ghastly brackish unwelcome grim execrable unspeakable lurid nightmarish frightful exceptionable unholy sick barbarous grisly sickly atrocious ungodly dislikable uncivilized macabre dislikeable lousy sickish upsetting unchristian hard distressing off-putting grewsome Antonyms & Near Antonyms innocuous desirable pleasant inoffensive acceptable delightful sweet delicious agreeable attractive congenial alluring pleasurable delectable heavenly enjoyable luscious satisfying palatable appealing nice savory dreamy felicitous gratifying pleasing welcome savoury dulcet unobjectionable likable inviting likeable darling blessed blest salubrious healthful wholesome unexceptionable salutary healthy restorative delightsome See More Synonym Chooser Some common synonyms of noxious are baneful, deleterious, detrimental, and pernicious. While all these words mean "exceedingly harmful," noxious applies to what is both offensive and injurious to the health of a body or mind. noxious chemical fumes The words baneful and noxious can be used in similar contexts, but baneful implies injury through poisoning or destroying. the baneful notion that discipline destroys creativity In some situations, the words deleterious and noxious are roughly equivalent. However, deleterious applies to what has an often unsuspected harmful effect. a diet found to have deleterious effects While the synonyms detrimental and noxious are close in meaning, detrimental implies obvious harmfulness to something specified. the detrimental effects of excessive drinking The meanings of pernicious and noxious largely overlap; however, pernicious implies irreparable harm done through evil or insidious corrupting or undermining. the claim that pornography has a pernicious effect on society
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noxious

adjective

Synonyms

Example Sentences

Word History

Kids Definition

adjective

Medical Definition

adjective

adjective

Synonym Chooser