Synonyms of unprincipled in English:

unprincipled

adjective

  • he is an unprincipled opportunist
    immoral, unethical, unscrupulous, amoral, dishonourable, reprobate, dishonest, unprofessional, deceitful, devious, corrupt, corrupted, dissolute, underhand, crooked, bad, wicked, evil, villainous, roguish, shameless, sinful, ignoble, base, low, degenerate, sordid
    archaic dastardly
    [Antonyms] principled ethical
  • Definition of unprincipled in:

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    Word of the day hypnopompic
    Pronunciation: ˌhɪpnə(ʊ)ˈpɒmpɪk
    adjective
    relating to the state immediately preceding waking up