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

This all started with a venomous lizard from the Desert Southwest. — Steve Midway, STAT, 16 July 2026

European colonists in Australia encountered a suite of venomous snakes just as fearsome as those of the Libyan desert. — Literary Hub, 10 July 2026

While many of the snakes were said to be non‑venomous water snake and rat snakes, some were cobras, which are considered highly venomous, reported the Xiaoxiang Daily. — Sylvie Zhuang, CNN Money, 7 July 2026

The exhibit is in partnership with the Houston Museum of Natural Science and explores the hidden dangers of the natural world, such as poisonous, venomous, or toxic plants and animals. — Emma Hall, Sacbee.com, 27 June 2026