toxic adjective Stress: first syllable 🤍 Save Syllables: tox-ic (2) English Definition Poisonous or very harmful Example Sentence These chemicals are highly toxic. US IPA /ˈtɑːk.sɪk/ 🔊 Listen US UK IPA /ˈtɒk.sɪk/ 🔊 Listen UK Synonyms poisonous venomous harmful noxious deadly Antonyms nontoxic harmless beneficial Share this Word Facebook WhatsApp X Telegram Copy Link