deleterious

adj.
Having a harmful effect; injurious: the deleterious effects of smoking.

[From Greek dēlētērios, from dēlētēr, destroyer, from dēleisthai, to harm.]

deleteriously del'e·te'ri·ous·ly adv.
deleteriousness del'e·te'ri·ous·ness n.

(del-i-TEER-ee-uhs)

adjective
Harmful; injurious.

Etymology
From Greek deleterios (destructive), from deleisthai (to harm)

Usage
"Petroleum and its products will continue to fetch escalating prices with new and deleterious effects on the world's economies and politics." — Mary King; No Business as Usual in Energy; Trinidad and Tobago Express; Jun 25, 2007.

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adjective

Causing harm or injury: bad, detrimental, evil, harmful, hurtful, ill, injurious, mischievous. See help/harm/harmless.

adj

Definition: harmful, damaging
Antonyms: aiding, assisting, helpful

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Injurious; harmful.

IN BRIEF: Harmful. Also: hurtful, morally or physically.

Using steroids can be deleterious to your health.

Dansk (Danish)
adj. - skadelig

Nederlands (Dutch)
schadelijk

Français (French)
adj. - nuisible à la (santé)

Deutsch (German)
adj. - schädlich

Ελληνική (Greek)
adj. - ανθυγιεινός, βλαβερός, επιβλαβής

Italiano (Italian)
deleterio

Português (Portuguese)
adj. - deletério

Русский (Russian)
вредный, опасный для здоровья

Español (Spanish)
adj. - nocivo, perjudicial, injurioso

Svenska (Swedish)
adj. - skadlig

中文（简体）(Chinese (Simplified))
有害于, 有毒的

中文（繁體）(Chinese (Traditional))
adj. - 有害於, 有毒的

한국어 (Korean)
adj. - 유해한

日本語 (Japanese)
adj. - 有害な

العربيه (Arabic)
‏(صفه) مؤذ, ضار بالصحه‏

עברית (Hebrew)
adj. - ‮מזיק‬

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