Word Study
illegal
CIDE DICTIONARY
illegal, a. [Pref. il- not + legal: cf. F. illégal.].
Not according to, or authorized by, law; specif., contrary to, or in violation of, human law; unlawful; illicit; hence, immoral; as, an illegal act; illegal trade; illegal love. Bp. Burnet. [1913 Webster]
OXFORD DICTIONARY
illegal, adj.
1 not legal.
2 contrary to law.
1 not legal.
2 contrary to law.
Derivative
illegality n. (pl. -ies). illegally adv.
Etymology
F ill{eacute}gal or med.L illegalis (as IN-(1), LEGAL)
THESAURUS
illegal
aberrant, abnormal, abominable, actionable, against the law, anarchic, anarchistic, anomic, atrocious, banned, barred, black-market, bootleg, chargeable, contraband, contrary to law, criminal, delinquent, deviant, disgraceful, evil, felonious, flawed, forbade, forbid, forbidden, hardly the thing, hot, ignominious, illegitimate, illicit, impermissible, improper, inappropriate, incorrect, indecorous, inequitable, infamous, iniquitous, interdicted, irregular, justiciable, lawless, nonconstitutional, nonlegal, nonlicit, nonpermissible, not done, not permitted, not the thing, off limits, off-base, off-color, out of bounds, out-of-line, outlaw, outlawed, prohibited, proscribed, punishable, ruled out, sacrilegious, scandalous, shameful, shameless, sinful, taboo, tabooed, terrible, triable, unallowed, unauthorized, unbalanced, unconstitutional, under the ban, under-the-counter, under-the-table, undeserved, undue, unequal, unequitable, uneven, unfit, unfitting, unjust, unlawful, unlicensed, unmeet, unmerited, unofficial, unpermissible, unrighteous, unrightful, unsanctioned, unseemly, unstatutory, unsuitable, untouchable, unwarrantable, unwarranted, verboten, vetoed, wicked, wrong, wrongfulROGET THESAURUS
illegal
Prohibition
N prohibition, inhibition, veto, disallowance, interdict, interdiction, injunction, estoppel, embargo, ban, taboo, proscription, index expurgatorius, restriction, hindrance, forbidden fruit, Maine law, prohibitive, prohibitory, proscriptive, restrictive, exclusive, forbidding, prohibited, not permitted, unlicensed, contraband, impermissible, under the ban of, illegal, unauthorized, not to be thought of, uncountenanced, unthinkable, beyond the pale, on no account, Int, forbid it heaven!, hands off!, keep off!, hold!, stop!, desist!, cease and desist!, avast!, that will never do, don't you dare, forget it, don't even think about doing it, go ahead, make my day.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.Wrong
N wrong, what ought not to be, what should not be, malum in se, unreasonableness, grievance, shame, injustice, tort, unfairness, iniquity, foul play, partiality, leaning, bias, favor, favoritism, nepotism, party spirit, partisanship, bigotry, undueness, wrongdoing (vice), unlawfulness, robbing Peter to pay Paul, the wolf and the lamb, vice, a custom more honored in the breach than the obser, wrong, wrongful, bad, too bad, unjust, unfair, inequitable, unequitable, unequal, partial, one-sided, injurious, tortious, objectionable, unreasonable, unallowable, unwarrantable, unjustifiable, improper, unfit, unjustified, illegal, iniquitous, immoral, in the wrong, in the wrong box, wrongly, it will not do.For further exploring for "illegal" in Webster Dictionary Online