unofficial

• POS: Adjective
• HYPHEN: un=of=fi=cial

OXFORD DICTIONARY

unofficial, adj.
1 not officially authorized or confirmed.
2 not characteristic of officials.

Idiom

unofficial strike a strike not formally approved by the strikers' trade union.

Derivative

unofficially adv.

THESAURUS

unofficial

Bohemian, actionable, affable, against the law, anarchic, anarchistic, anomic, apocryphal, black-market, bootleg, casual, chargeable, contraband, contrary to law, cordial, criminal, degage, easy, easygoing, familiar, felonious, flawed, folksy, free and easy, gracious, haymish, homely, homey, illegal, illegitimate, illicit, impermissible, informal, irregular, justiciable, lawless, loose, natural, nonconstitutional, nonlegal, nonlicit, nonofficial, offhand, offhanded, outlaw, outlawed, plain, punishable, relaxed, simple, sociable, triable, unaffected, unallowed, unassuming, unattested, unauthentic, unauthenticated, unauthoritative, unauthorized, unceremonious, uncertified, unchecked, unconfirmed, unconstitutional, unconstrained, unconventional, uncorroborated, undemonstrated, under-the-counter, under-the-table, unlawful, unproved, unstatutory, unstudied, unvalidated, unverified, unwarrantable, unwarranted, wrongful

ROGET THESAURUS

unofficial

Illegality

N illegality, lawlessness, illicitness, breach of law, violation of law, infraction of the law, disobedience, unconformity, arbitrariness, antinomy, violence, brute force, despotism, outlawry, mob law, lynch law, club law, Lydford law, martial law, drumhead law, coup d'etat, le droit du plus fort, argumentum baculinum, illegality, informality, unlawfulness, illegitimacy, bar sinister, trover and conversion, smuggling, poaching, simony, outlaw, bad man, v, offend against the law, violate the law, infringe the law, break the law, set the law at defiance, ride roughshod over, drive a coach and six through a statute, ignore the law, make the law a dead letter, take the law into one's own hands, smuggle, run, poach, illegal, unlawful, illegitimate, not allowed, prohibited, illicit, contraband, actionable, unwarranted, unwarrantable, unauthorized, informal, unofficial, injudicial, extrajudicial, lawless, arbitrary, despotic, despotical, corrupt, summary, irresponsible, unanswerable, unaccountable, expired, invalid, unchartered, unconstitutional, null and void, a dead letter, lawless, unregulated, illegally, with a high hand, in violation of law.