poisonous

adj.

1. Capable of harming or killing by or as if by poison; toxic or venomous.
2. Containing a poison.
3. Marked by apparent ill will: "poisonous hate . . . in his eyes" (Ernest Hemingway).

poisonously poi'son·ous·ly adv.
poisonousness poi'son·ous·ness n.

SYNONYMS   poisonous, mephitic, pestilent, pestilential, toxic, venomous, virulent. These adjectives mean having the destructive or fatal effect of a poison: a poisonous snake; a mephitic vapor; a pestilent agitator; pestilential jungle mists; toxic fumes; venomous jealousy; a virulent form of cancer.

adjective

1. Capable of injuring or killing by poison: mephitic, mephitical, poison, toxic, toxicant, venomous, virulent. See help/harm/harmless.
2. Characterized by intense ill will or spite: black, despiteful, evil, hateful, malevolent, malicious, malign, malignant, mean², nasty, spiteful, venomous, vicious, wicked. Slang bitchy. See attitude/good attitude/bad attitude/neutral attitude.

Having the properties of a poison.

• p. bride's bush — pavetta schumanniana.
• p. plants — plants which contain specific chemical poisons, although they may not be identified. They are a different group from plants which cause illness if eaten in very large amounts or have physical qualities that cause illness, e.g. clover in bloat, tree loppings in omasal impaction. There is a third group of plants, those that are only intermittently poisonous. These form a very large group known to have caused nitrite, cyanide or oxalate poisoning but are valuable plants and are safe if used with care. See also under the names of individual plants or the toxins that they contain.

Dansk (Danish)
adj. - giftig, gyselig

Nederlands (Dutch)
giftig, vergiftig, bedervend

Français (French)
adj. - toxique, vénéneux, (Zool) venimeux

Deutsch (German)
adj. - giftig, verderblich

Ελληνική (Greek)
adj. - δηλητηριώδης, φαρμακερός

Italiano (Italian)
velenoso

Português (Portuguese)
adj. - venenoso

Русский (Russian)
ядовитый, отравляющий

Español (Spanish)
adj. - venenoso, tóxico, ponzoñoso

Svenska (Swedish)
adj. - giftig, illvillig

中文（简体）(Chinese (Simplified))
有毒的, 恶毒的, 有恶意的, 有害的, 讨厌的, 不愉快的

中文（繁體）(Chinese (Traditional))
adj. - 有毒的, 惡毒的, 有惡意的, 有害的, 討厭的, 不愉快的

한국어 (Korean)
adj. - 유독한, 악취를 풍기는, 불쾌한

日本語 (Japanese)
adj. - 有毒の, 有害な, 不快な, 悪意のある, 有毒な

العربيه (Arabic)
‏(صفه) سام, هدام‏

עברית (Hebrew)
adj. - ‮ארסי, רעלי, רעיל, גרוע, רע‬

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