deleterious

adjective

del·e·te·ri·ous ˌde-lə-ˈtir-ē-əs How to pronounce deleterious (audio)

: harmful often in a subtle or unexpected way

deleterious effects

deleterious to health

deleteriously adverb

deleteriousness noun

Example Sentences

In developing countries, the imposition of boundaries around national parks and protected areas has been deleterious for both people and wildlife.

Kristin B. Gunther, Association of American Geographers, 2002 Most everyone now knows the action of pressing mouse keys is far more deleterious to the tender structures of the wrist and hand than typing is.

Michael Finley, Albany (New York) Times-Union, 2 Sept. 1998 This skewed allocation of resources away from those most in need, in turn, insures that many young people from low-income families will continue to be shut out of the economy, with obvious deleterious family and social consequences.

Iris C. Rotberg, Education Week, 9 Mar. 1994 For as James Keirans pointed out to me, ticks are the world's most notorious carriers of the agents of diseases that strike animals, wild and domestic. And they rank second only to mosquitoes in their deleterious effect on humans.

Edwards Park, Smithsonian, January 1987 The chemical is deleterious to the environment. The drug has no deleterious effects on patients. See More

Recent Examples on the Web While tariffs may be a hypothetical future bargaining chip, the deleterious impact of such tariffs on a U.S. economy in crisis is already being felt across the board.

Jason Oxman, Fortune, 19 July 2022 Death has a more deleterious impact on the environment than many realize.

William Ralston, Wired, 26 July 2022 Such high quit rates have become so deleterious that companies are flagging the Great Resignation as a potential business risk in their annual reports.

Phil Wahba, Fortune, 28 Apr. 2022 The Defense Department suggests that the lack of in-person engagement throughout the pandemic has had a deleterious effect on recruiting; that seems more plausible.

WSJ, 4 Aug. 2022 But the rise of benzos has also had deleterious effects in a country that is still in the grips of a deadly opioid epidemic.

Julyssa Lopez, Rolling Stone, 5 July 2022 The people who might most benefit from this book—those who have bought into the myth of paradise with an ocean view, deleterious impact be damned, and have the means to regularly experience a version of it—don’t want their illusions destroyed.

Lauren Groff, The Atlantic, 21 June 2022 There is a hot debate about the effects of using ethanol blends above 10%, but apparently 15% does not have a deleterious impact on engines—at least four stroke engines.

Michael Lynch, Forbes, 6 June 2022 In the late 1950s, after experiencing antisemitism in his own life and seeing its deleterious impact on society, Schary went on to become national chairman of ADL.

Jonathan Greenblatt, The Hollywood Reporter, 21 Mar. 2022 See More

deleterious

adjective

as in detrimental

causing or capable of causing harm nicotine has long been recognized as a deleterious substance

Synonyms & Similar Words

Relevance

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

Antonyms & Near Antonyms

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

Synonym Chooser

Some common synonyms of deleterious are baneful, detrimental, noxious, and pernicious. While all these words mean "exceedingly harmful," deleterious applies to what has an often unsuspected harmful effect.

a diet found to have deleterious effects

The synonyms baneful and deleterious are sometimes interchangeable, but baneful implies injury through poisoning or destroying.

the baneful notion that discipline destroys creativity

The words detrimental and deleterious are synonyms, but do differ in nuance. Specifically, detrimental implies obvious harmfulness to something specified.

the detrimental effects of excessive drinking

The meanings of noxious and deleterious largely overlap; however, noxious applies to what is both offensive and injurious to the health of a body or mind.

noxious chemical fumes

The words pernicious and deleterious can be used in similar contexts, but pernicious implies irreparable harm done through evil or insidious corrupting or undermining.

the claim that pornography has a pernicious effect on society

单词	deleterious
释义	deleterious adjective del·e·te·ri·ous ˌde-lə-ˈtir-ē-əs : harmful often in a subtle or unexpected way deleterious effects deleterious to health deleteriously adverb deleteriousness noun Synonyms adverse bad baleful baneful damaging dangerous detrimental evil harmful hurtful ill injurious mischievous nocuous noxious pernicious prejudicial wicked See all Synonyms & Antonyms Example Sentences In developing countries, the imposition of boundaries around national parks and protected areas has been deleterious for both people and wildlife. Kristin B. Gunther, Association of American Geographers, 2002 Most everyone now knows the action of pressing mouse keys is far more deleterious to the tender structures of the wrist and hand than typing is. Michael Finley, Albany (New York) Times-Union, 2 Sept. 1998 This skewed allocation of resources away from those most in need, in turn, insures that many young people from low-income families will continue to be shut out of the economy, with obvious deleterious family and social consequences. Iris C. Rotberg, Education Week, 9 Mar. 1994 For as James Keirans pointed out to me, ticks are the world's most notorious carriers of the agents of diseases that strike animals, wild and domestic. And they rank second only to mosquitoes in their deleterious effect on humans. Edwards Park, Smithsonian, January 1987 The chemical is deleterious to the environment. The drug has no deleterious effects on patients. See More Recent Examples on the Web While tariffs may be a hypothetical future bargaining chip, the deleterious impact of such tariffs on a U.S. economy in crisis is already being felt across the board. Jason Oxman, Fortune, 19 July 2022 Death has a more deleterious impact on the environment than many realize. William Ralston, Wired, 26 July 2022 Such high quit rates have become so deleterious that companies are flagging the Great Resignation as a potential business risk in their annual reports. Phil Wahba, Fortune, 28 Apr. 2022 The Defense Department suggests that the lack of in-person engagement throughout the pandemic has had a deleterious effect on recruiting; that seems more plausible. WSJ, 4 Aug. 2022 But the rise of benzos has also had deleterious effects in a country that is still in the grips of a deadly opioid epidemic. Julyssa Lopez, Rolling Stone, 5 July 2022 The people who might most benefit from this book—those who have bought into the myth of paradise with an ocean view, deleterious impact be damned, and have the means to regularly experience a version of it—don’t want their illusions destroyed. Lauren Groff, The Atlantic, 21 June 2022 There is a hot debate about the effects of using ethanol blends above 10%, but apparently 15% does not have a deleterious impact on engines—at least four stroke engines. Michael Lynch, Forbes, 6 June 2022 In the late 1950s, after experiencing antisemitism in his own life and seeing its deleterious impact on society, Schary went on to become national chairman of ADL. Jonathan Greenblatt, The Hollywood Reporter, 21 Mar. 2022 See More Word History Etymology Greek dēlētērios, from dēleisthai to hurt First Known Use 1587, in the meaning defined above Medical Definition deleterious adjective del·e·te·ri·ous ˌdel-ə-ˈtir-ē-əs : harmful often in a subtle or an unexpected way the deleterious effects of radiation and chemotherapy on the marrow Christine Gorman deleterious genes deleterious adjective as in detrimental causing or capable of causing harm nicotine has long been recognized as a deleterious substance Synonyms & Similar Words Relevance detrimental harmful adverse damaging dangerous bad injurious pernicious hazardous baneful poisonous noxious prejudicial hurtful infectious evil baleful nocuous destructive mischievous ill wicked hostile deadly lethal inimical infective unsafe insidious venomous sinister risky unfriendly threatening pestiferous pestilential ominous fatal pestilent unhealthful perilous malignant unwholesome unhealthy contagious menacing ruinous imperiling unsound jeopardizing parlous nasty imperilling noisome killer Antonyms & Near Antonyms beneficial harmless benign innocuous advantageous useful innocent safe favorable inoffensive anodyne good salutary healthful propitious healthy salubrious curative wholesome remedial helpful palliative sound hurtless secure benignant nontoxic noninfectious nonlethal noncorrosive nonpoisonous nondestructive nonfatal nonpolluting nonvenomous See More Synonym Chooser Some common synonyms of deleterious are baneful, detrimental, noxious, and pernicious. While all these words mean "exceedingly harmful," deleterious applies to what has an often unsuspected harmful effect. a diet found to have deleterious effects The synonyms baneful and deleterious are sometimes interchangeable, but baneful implies injury through poisoning or destroying. the baneful notion that discipline destroys creativity The words detrimental and deleterious are synonyms, but do differ in nuance. Specifically, detrimental implies obvious harmfulness to something specified. the detrimental effects of excessive drinking The meanings of noxious and deleterious largely overlap; however, noxious applies to what is both offensive and injurious to the health of a body or mind. noxious chemical fumes The words pernicious and deleterious can be used in similar contexts, but 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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deleterious

adjective

Synonyms

Example Sentences

Word History

Medical Definition

adjective

adjective

Synonym Chooser