pernicious

adj.

1. 1. Tending to cause death or serious injury; deadly: a pernicious virus.
   2. Causing great harm; destructive: pernicious rumors.
2. Archaic. Evil; wicked.

[Middle English, from Old French pernicios, from Latin perniciōsus, from perniciēs, destruction : per-, per- + nex, nec-, violent death.]

perniciously per·ni'cious·ly adv.
perniciousness per·ni'cious·ness n.

(pur-NISH-uhs)

adjective
Causing great harm; deadly; wicked.

Etymology
From Middle English, from Old French, from Latin perniciosus, from pernicies (complete destruction), from per- (thoroughly) + nici-, from nex (destruction).

Usage
"As for yourself, (continued the King), who have spent the greatest Part of your Life in Travelling, I am well disposed to hope you may hitherto have escaped many Vices of your Country. But by what I have gathered from your own Relation, and the Answers I have with much Pain wringed and extorted from you, I cannot but conclude the Bulk of your Natives to be the most pernicious Race of little odious Vermin that Nature ever suffered to crawl upon the Surface of the Earth." — Jonathan Swift, Gulliver's Travels (Part II: A Voyage to Brobdingnag), 1726.

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adjective

1. Extremely destructive or harmful: baneful, deadly, malignant, noxious, pestilent, pestilential, virulent. See help/harm/harmless.
2. Having the capability or effect of damaging irreparably: destructive, ruinous. See help/harm/harmless.

adj

Definition: bad, hurtful
Antonyms: beneficial, favorable, helpful, innocuous, kind, loveable, loving

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Tending to a fatal issue.

• p. anemia — a form of anemia in humans caused by a genetically determined lack of the intrinsic factor, which normally is produced by the stomach mucosa. The deficiency results in inadequate and abnormal formation of erythrocytes, and failure to absorb vitamin B₁₂. Not reported in animals.

IN BRIEF: Harmful; injurious. Also: Tending to kill or hurt.

Three things too much, and three too little are pernicious to man; to speak much, and know little; to spend much, and have little; to presume much, and be worth little. — Miguel de Cervantes (1547-1616)

Dansk (Danish)
adj. - skadelig, fordærvelig

idioms:

• pernicious anaemia    anæmi

Nederlands (Dutch)
verderfelijk, schadelijk, fataal

Français (French)
adj. - pernicieux

idioms:

• pernicious anaemia    anémie pernicieuse

Deutsch (German)
adj. - schädlich, bösartig

idioms:

• pernicious anaemia    (Med.) perniziöse Anämie

Ελληνική (Greek)
adj. - επιβλαβέστατος, καταστρεπτικότατος, ολέθριος, (για νόσο κ.λπ.) κακοήθης

idioms:

• pernicious anaemia    κακοήθης αναιμία

Italiano (Italian)
pernicioso

idioms:

• pernicious anaemia    anemia perniciosa

Português (Portuguese)
adj. - pernicioso, mortal, maligno

idioms:

• pernicious anaemia    anemia perniciosa (Med.)

Русский (Russian)
пагубный

idioms:

• pernicious anaemia    злокачественная анемия

Español (Spanish)
adj. - pernicioso, nocivo, dañoso

idioms:

• pernicious anaemia    anemia perniciosa

Svenska (Swedish)
adj. - ödeläggande, dödsbringande, elakartad, dödlig

中文（简体）(Chinese (Simplified))
有害的, 致命的, 有毒的

idioms:

• pernicious anaemia    恶性贫血

中文（繁體）(Chinese (Traditional))
adj. - 有害的, 致命的, 有毒的

idioms:

• pernicious anaemia    惡性貧血

한국어 (Korean)
adj. - 유해한, 치명적인, 간악한

日本語 (Japanese)
adj. - 有害な, 破壊的な, 致命的な

idioms:

• pernicious anaemia    悪性貧血

العربيه (Arabic)
‏(صفه) مؤذ, مفسد, سيئ, هدام‏

עברית (Hebrew)
adj. - ‮מזיק, משחית, ממאיר, קטלני, רציני‬

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