Definition of unpoisonous in English:

unpoisonous

Pronunciation /(ˌ)ʌnˈpɔɪz(ə)nəs/ /(ˌ)ʌnˈpɔɪznəs/

adjective

  • Non-poisonous; (of a snake or a sting) not venomous.

Origin

Mid 17th century; earliest use found in Eikon Basilike. From un- + poisonous.