Thesaurus.com
Dictionary.com
Definitions

poisonous

[poi-zuh-nuhs] / ˈpɔɪ zə nəs /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In this poisonous time, those who grin at the notion of playing a Traitor may think twice about the potential cost to their principles.

From Salon • Jan. 28, 2026

But time and again the poisonous isolation that absolute power imposes on its wielders blunted the edge of their insight and degraded the capacity of their societies.

From The Wall Street Journal • Jan. 26, 2026

Hydrogen cyanide, which is highly poisonous, can freeze into crystals at low temperatures.

From Science Daily • Jan. 16, 2026

He was responding to a question from Liberal Democrat leader Sir Ed Davey, who said antisemitism was real, "poisonous" and that "we must all work together to stamp it out".

From BBC • Dec. 17, 2025

When she sees his number appear, she recoils, as if she’s just seen a poisonous creature.

From "A Heart in a Body in the World" by Deb Caletti




Vocabulary lists containing poisonous