'Immoral' definitions:

Definition of 'immoral'

From: WordNet
adjective
Deliberately violating accepted principles of right and wrong [ant: moral]
adjective
Not adhering to ethical or moral principles; "base and unpatriotic motives"; "a base, degrading way of life"; "cheating is dishonorable"; "they considered colonialism immoral"; "unethical practices in handling public funds" [syn: base, immoral]

Definition of 'Immoral'

From: GCIDE
  • Immoral \Im*mor"al\, a. [Pref. im- not + moral: cf. F. immoral.] Not moral; inconsistent with rectitude, purity, or good morals; contrary to conscience or the divine law; wicked; unjust; dishonest; vicious; licentious; as, an immoral man; an immoral deed.
  • Syn: Wicked; sinful; criminal; vicious; unjust; dishonest; depraved; impure; unchaste; profligate; dissolute; abandoned; licentious; lewd; obscene. [1913 Webster]