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.

See Examples For:

The azure shimmer of the blue morpho confuses predators, while monarchs’ vibrant orange-and-black wings warn birds and other predators that they are poisonous.

From The Wall Street Journal Aug. 3, 2026

The Pluskal Group, including Mutabdžija, was studying the same difficult family of diterpenoid alkaloids in wolfsbane, a famously poisonous relative of larkspur that is also known as monkshood.

From Science Daily Aug. 3, 2026

For his part, during his by-election campaign, Burnham warned voters that Britain risked drifting towards the "polarised, poisonous politics" of the United States, where "people in communities don't work together any more".

From Barron's Jul. 19, 2026

"He knows quite a lot of the plants and when he had a friend round a little while ago, he did a danger tour of all the poisonous or spiky plants," Gemma said.

From BBC Jul. 1, 2026

In a moment, it would meet the poisonous vapor and liquid of the cauldron.

From "Aru Shah and the End of Time" by Roshani Chokshi




Vocabulary lists containing poisonous


Vocabulary.com logo
by dictionary.com

Join 14,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training