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

Highly venomous brown snakes are also found in the area, and a bite could have killed a small child. — Hilary Whiteman, CNN Money, 20 Sep. 2026

Although there are more than 100 snake species and subspecies in Texas, there are only four groups of venomous snakes in the state. — Brandi D. Addison, USA Today, 2 Sep. 2026

According to the popular—and scientifically baseless—myth, daddy longlegs spiders are among the most venomous spiders, but their fangs are too short to bite humans. — Melissa Petruzzello, Encyclopedia Britannica, 2 Sep. 2026

In particular, officials are on the lookout for venomous species, although some admittedly fall through the cracks. — John Werner, Forbes.com, 30 Aug. 2026