pernicious

[ per-nish-uhs ]

/ pərˈnɪʃ əs /

SEE SYNONYMS FOR pernicious ON THESAURUS.COM

adjective

causing insidious harm or ruin; ruinous; injurious; hurtful: pernicious teachings; a pernicious lie.

deadly; fatal: a pernicious disease.

Obsolete. evil; wicked.

Origin of pernicious

1515–25; <Latin perniciōsus ruinous, equivalent to pernici(ēs) ruin (per-per- + -nici-, combining form of nex death, murder (stem nec-) + -iēs noun suffix) + -ōsus-ous

SYNONYMS FOR pernicious

1 harmful, detrimental, deleterious, destructive, damaging, baneful, noxious, malicious.

2 lethal.

SEE SYNONYMS FOR pernicious ON THESAURUS.COM

OTHER WORDS FROM pernicious

per·ni·cious·ly, adverbper·ni·cious·ness, nounun·per·ni·cious, adjectiveun·per·ni·cious·ly, adverb

Words nearby pernicious

permutation, permutation group, permute, Pernambuco, pernancy, pernicious, pernicious anaemia, pernicious anemia, pernicious vomiting, pernickety, Pernik

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for pernicious

Cancer is the most pernicious, insidious, disgusting disease of life.
Pierce Brosnan’s Life After Bond: From Action Hero to Losing His Daughter to Cancer|Tim Teeman|July 2, 2014|DAILY BEAST
I spoke to my students about mobilizing against this pernicious threat to our civilization.
As Parents We’re All Gun Violence Cowards|William Giraldi|May 30, 2014|DAILY BEAST
The nature of the harm allegedly caused by Goddard was “subtle, imperceptible and pernicious.”
Exclusive: Bryan Singer Faces New Teen Sex Assault Lawsuit|Tim Teeman|May 4, 2014|DAILY BEAST
“There is a pernicious effect of money on the legislative process,” he argued.
Congress Can Be Corrupt Without Corrupt People|Lawrence Lessig|December 13, 2013|DAILY BEAST

The biggest problem is not that such unfounded theories are ludicrous but that they are pernicious.
Who Really Killed JFK? Experts Pick the Wildest Conspiracy Theories|Thomas Flynn|November 20, 2013|DAILY BEAST
It takes at least two generations to outgrow the pernicious influence of such circumstances.
Speeches, Addresses, and Occasional Sermons, Volume 1 (of 3)|Theodore Parker
In Spain there is not the pernicious system of dowries; as a rule it is personal attraction that wins a husband.
Heroic Spain|Elizabeth Boyle O'Reilly
Well, the result of my inquiries has been to find out that this worthy person is a heretic of the most pernicious sort.
Lysbeth|H. Rider Haggard
Cares are often caused by women; pernicious they become, although the mighty God them pure created.
The Elder Eddas of Saemund Sigfusson; and the Younger Eddas of Snorre Sturleson|Saemund Sigfusson and Snorre Sturleson
In 1864 Pius IX issued his famous encyclical, in which he boldly condemned the "pernicious" doctrine of the rights of man.
The Church In Politics--Americans Beware!|M. M. Mangasarian

British Dictionary definitions for pernicious

pernicious

/ (pəˈnɪʃəs) /

adjective

wicked or maliciouspernicious lies

causing grave harm; deadly

Derived forms of pernicious

perniciously, adverbperniciousness, noun

Word Origin for pernicious

C16: from Latin perniciōsus, from perniciēs ruin, from per- (intensive) + nex death

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for pernicious

pernicious

[ pər-nĭsh′əs ]

adj.

Tending to cause death or serious injury; deadly.

单词	pernicious
释义	pernicious [ per-nish-uhs ] / pərˈnɪʃ əs / SEE SYNONYMS FOR pernicious ON THESAURUS.COM adjective causing insidious harm or ruin; ruinous; injurious; hurtful: pernicious teachings; a pernicious lie. deadly; fatal: a pernicious disease. Obsolete. evil; wicked. Origin of pernicious 1515–25; <Latin perniciōsus ruinous, equivalent to pernici(ēs) ruin (per-per- + -nici-, combining form of nex death, murder (stem nec-) + -iēs noun suffix) + -ōsus-ous SYNONYMS FOR pernicious 1 harmful, detrimental, deleterious, destructive, damaging, baneful, noxious, malicious. 2 lethal. SEE SYNONYMS FOR pernicious ON THESAURUS.COM OTHER WORDS FROM pernicious per·ni·cious·ly, adverbper·ni·cious·ness, nounun·per·ni·cious, adjectiveun·per·ni·cious·ly, adverb Words nearby pernicious permutation, permutation group, permute, Pernambuco, pernancy, pernicious, pernicious anaemia, pernicious anemia, pernicious vomiting, pernickety, Pernik Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for pernicious Cancer is the most pernicious, insidious, disgusting disease of life. Pierce Brosnan’s Life After Bond: From Action Hero to Losing His Daughter to Cancer\|Tim Teeman\|July 2, 2014\|DAILY BEAST I spoke to my students about mobilizing against this pernicious threat to our civilization. As Parents We’re All Gun Violence Cowards\|William Giraldi\|May 30, 2014\|DAILY BEAST The nature of the harm allegedly caused by Goddard was “subtle, imperceptible and pernicious.” Exclusive: Bryan Singer Faces New Teen Sex Assault Lawsuit\|Tim Teeman\|May 4, 2014\|DAILY BEAST “There is a pernicious effect of money on the legislative process,” he argued. Congress Can Be Corrupt Without Corrupt People\|Lawrence Lessig\|December 13, 2013\|DAILY BEAST The biggest problem is not that such unfounded theories are ludicrous but that they are pernicious. Who Really Killed JFK? Experts Pick the Wildest Conspiracy Theories\|Thomas Flynn\|November 20, 2013\|DAILY BEAST It takes at least two generations to outgrow the pernicious influence of such circumstances. Speeches, Addresses, and Occasional Sermons, Volume 1 (of 3)\|Theodore Parker In Spain there is not the pernicious system of dowries; as a rule it is personal attraction that wins a husband. Heroic Spain\|Elizabeth Boyle O'Reilly Well, the result of my inquiries has been to find out that this worthy person is a heretic of the most pernicious sort. Lysbeth\|H. Rider Haggard Cares are often caused by women; pernicious they become, although the mighty God them pure created. The Elder Eddas of Saemund Sigfusson; and the Younger Eddas of Snorre Sturleson\|Saemund Sigfusson and Snorre Sturleson In 1864 Pius IX issued his famous encyclical, in which he boldly condemned the "pernicious" doctrine of the rights of man. The Church In Politics--Americans Beware!\|M. M. Mangasarian British Dictionary definitions for pernicious pernicious / (pəˈnɪʃəs) / adjective wicked or maliciouspernicious lies causing grave harm; deadly Derived forms of pernicious perniciously, adverbperniciousness, noun Word Origin for pernicious C16: from Latin perniciōsus, from perniciēs ruin, from per- (intensive) + nex death Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to pernicious devastating, noxious, deadly, poisonous, virulent, malicious, harmful, toxic, nefarious, detrimental, dangerous, lethal, ruinous, destructive, damaging, baleful, deleterious, evil, fatal, iniquitous Medical definitions for pernicious pernicious [ pər-nĭsh′əs ] adj. Tending to cause death or serious injury; deadly. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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pernicious

adjective

Origin of pernicious

SYNONYMS FOR pernicious

OTHER WORDS FROM pernicious

Words nearby pernicious

Example sentences from the Web for pernicious

British Dictionary definitions for pernicious

adjective

Derived forms of pernicious

Word Origin for pernicious

Words related to pernicious

Medical definitions for pernicious

adj.