1
[ adjective ] exceedingly harmful

Synonyms

deadly pernicious baneful

Related terms

noxious

2
[ adjective ] likely to spread and cause an epidemic disease

Synonyms

pestilential pestiferous plaguey plaguelike

Examples

"a pestilential malignancy in the air"- Jonathan Swift "plaguelike diseases" "plaguey fevers"

Related terms

epidemic

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Similar Spelling

pestilential pestilence pestle pesthole pastille

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