Synonyms of unprincipled in English:

unprincipled

adjective

  • 1 he is an unprincipled opportunist
    immoral, unethical, amoral, unscrupulous, Machiavellian, dishonorable, dishonest, deceitful, devious, corrupt, crooked, wicked, evil, villainous, shameless, base, low;
    libertine, licentious
    [Antonyms] ethical
  • Definition of unprincipled in:

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    Word of the day bimble
    Pronunciation: ˈbɪmb(ə)l
    verb
    walk or travel at a leisurely pace