illicit

 
Pronunciation: /ɪˈlɪsɪt/

adjective

  • forbidden by law, rules, or custom: illicit drugs illicit sex

Derivatives

illicitly

adverb

illicitness

noun

Origin:

early 16th century: from French, or from Latin illicitus, from in- 'not' + licitus (see licit)

On the distinctions between illicit, illegal, and unlawful, see illegal (usage).