poisonous
1. [ adjective ] not safe to eat
Related terms: inedible
2. [ adjective ] having the qualities or effects of a poison
Synonyms: toxicant
Related terms: toxic
3. [ adjective ] marked by deep ill will; deliberately harmful
Synonyms: vicious venomous
Examples:

"a malevolent lie" "poisonous hate...in his eyes"- Ernest Hemingway "venomous criticism" "vicious gossip"

Related terms: malevolent
Similar spelling:   poisonously
  poison_gas
  poison_ash
  poison_sumac
  poison_camas
  poison_oak