Synonyms of venomous

venomous

adjective

ˈve-nə-məs 

as in poisonous

containing or contaminated with a substance capable of injuring or killing a living thing

a venomous arrow

Synonyms & Similar Words

• poisonous
• poisoned
• poison
• toxic
• envenomed
• infectious
• virulent
• infective
• malignant
• harmful
• pathogenic
• injurious
• lethal
• deleterious
• baneful
• pestilential
• hurtful
• contagious
• noxious
• fatal
• deadly
• pestilent
• unhealthful
• unwholesome
• nocuous
• unhealthy
• murderous
• calamitous
• fell

Antonyms & Near Antonyms

• nontoxic
• beneficial
• helpful
• healthy
• remedial
• healthful
• wholesome
• curative
• nonpoisonous
• salutary
• nonvenomous
• harmless
• palliative
• benign
• salubrious
• innocuous
• inoffensive
• nonlethal
• nonfatal

Example Sentences

Recent Examples of venomous

During the show, he was filmed skiing to the South Pole, catching a giant anaconda, milking a venomous tarantula and diving under the ice of the North Pole. — Charna Flam, PEOPLE, 29 Aug. 2026

Samba the jaguar was bitten twice by a venomous snake before being rushed to a trauma center for emergency treatment, Anderson told The Fresno Bee. — Gagandeep Singh, Sacbee.com, 26 Aug. 2026

Cottonmouths — semiaquatic snakes also known as water moccasins — are in the top three most commonly encountered venomous snakes in Arkansas, Davis said. — Devon Henderson, New York Times, 12 Aug. 2026

Cottonmouths are the second-most venomous snakes found in Arkansas. — CBS News, 11 Aug. 2026