1 lacking moral principles; unscrupulous
2 foll by: in
Archaic not versed in the principles of (a subject)
English Collins Dictionary - English Definition & Thesaurus
amoral, corrupt, crooked, deceitful, devious, dishonest, immoral, sink, tricky, unconscionable, underhand, unethical, unprofessional, unscrupulous
decent, ethical, honest, honourable, moral, righteous, scrupulous, upright, virtuous
English Collins Dictionary - English synonyms & Thesaurus
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