illicit
adjective
[ ɪˈlɪsɪt ]
• forbidden by law, rules, or custom.
• "illicit drugs"
Similar:
illegal,
unlawful,
illegitimate,
against the law,
outlawed,
banned,
forbidden,
prohibited,
interdicted,
proscribed,
not allowed,
not permitted,
criminal,
lawbreaking,
actionable,
felonious,
unlicensed,
unauthorized,
unsanctioned,
unwarranted,
unofficial,
contraband,
black-market,
under the counter,
bootleg,
malfeasant,
verboten,
non licet,
taboo,
ruled out,
impermissible,
not acceptable,
unacceptable,
against the rules,
secret,
clandestine,
furtive,
sly,
haram,
tapu,
Origin:
early 16th century: from French, or from Latin illicitus, from in- ‘not’ + licitus (see licit).