The definition of illicit is something illegal, forbidden or culturally taboo.(adjective)
An example of illicit is the use of illegal drugs.
See illicit in Webster's New World College Dictionary
Origin: Fr illicite < L illicitus, not allowed: see in- & licit
See illicit in American Heritage Dictionary 4
Origin: Latin illicitus
Origin: : in-, not; see in-1
Origin: + licitus, lawful; see licit.
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