View synonyms for

poisonous

[ poi-zuh-nuhs ]

Phonetic (Standard)IPA

adjective

full of or containing poison:
poisonous air; a poisonous substance.
harmful; destructive:
poisonous to animals; poisonous rumors.
deeply malicious; malevolent:
poisonous efforts.

poisonous

/ ˈ��ɔɪ��ə��ə�� /

adjective

having the effects or qualities of a poison
capable of killing or inflicting injury; venomous
corruptive or malicious

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Derived Forms

ˈ��Ǿ��ǲԴǳܲ��Ա��, noun
ˈ��Ǿ��ǲԴǳܲ��, adverb

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Other Word Forms

��Ǿ�s�ǲ�·�ǳܲ�·�� adverb
��Ǿ�s�ǲ�·�ǳܲ�·�Ա�� noun
�Դǲ�·��Ǿ�s�ǲ�·�ǳܲ� adjective
non·��Ǿ�s�ǲ�·�ǳܲ�·�� adverb
non·��Ǿ�s�ǲ�·�ǳܲ�·�Ա�� noun
��i·��Ǿ�s�ǲ�·�ǳܲ� adjective
semi·��Ǿ�s�ǲ�·�ǳܲ�·�� adverb
�ܲ�·��Ǿ�s�ǲ�·�ǳܲ� adjective
un·��Ǿ�s�ǲ�·�ǳܲ�·�� adverb

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Word History and Origins

Origin of poisonous¹

First recorded in 1565–75; poison + -ous

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Compare Meanings

How does poisonous compare to similar and commonly confused words? Explore the most common comparisons:

poisonous vs. venomous

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Example Sentences

Examples have not been reviewed.

Can you treat someone with "love, kindness, and respect" while simultaneously insisting their identity is so poisonous that it cannot be acknowledged?

From

TikTok, one particularly problematic Chinese export, is mental fentanyl designed to addict the Western masses and dupe them into poisonous ideologies — and Communist Party spyware, to boot.

From

He bought a poisonous chemical and followed instructions on how to end his life.

From

But the poisonous plant is expected to be hanging around when they reopen.

From

Timothy makes a poisonous shake for Victoria, Saxon and himself to drink.

From

Related Words

poison oak poison-pen

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