illicit Meaning, Definition & Usage

adjective contrary to accepted morality (especially sexual morality) or convention
- an illicit association with his secretary
adjective satellite contrary to or forbidden by law
illegitimate; outlaw; unlawful; outlawed.
- an illegitimate seizure of power
- illicit trade
- an outlaw strike
- unlawful measures

L. illicitus; pref. il- not + licitus, p.p. of licere to be allowed or permitted: cf. F. illicite. See In- not, and License.

Not permitted or allowed; prohibited; unlawful; as, illicit trade; illicit intercourse; illicit pleasure.
One illicit . . . transaction always leads to another. Burke.
-- Il*lic"it*ly, adv. -- Il*lic"it*ness, n.