1. (adj)immoral deliberately violating accepted principles of right and wrong Synonyms: base Antonyms: right, moral, moralistic, chaste, righteous, clean, incorrupt, clean-living
2. (adj)base, immoral not adhering to ethical or moral principles Synonyms: baseborn, meanspirited, base, basal, immoral, lowly, mean, humble Antonyms: clean-living, righteous, incorrupt, clean, moralistic, right, moral, chaste
Synonyms, Thesaurus & Antonyms of 'immoral'
English Synonyms and Antonyms
1. immoral Every criminal act is illegal or unlawful, but illegal or unlawful acts may not be criminal. Offenses against public law are criminal; offenses against private rights are merely illega Synonyms: criminal, abominable, flagitious, immoral, sinful, vile, culpable, guilty, iniquitous, unlawful, wicked, felonious, illegal, nefarious, vicious, wrong Antonyms: innocent, lawful, meritorious, right, just, legal, moral, virtuous, nightly, nocturnal
Synonyms for immoral 
