Definition of unprincipled in English:

unprincipled

adjective

  • (of a person or their behaviour) not acting in accordance with moral principles.

    ‘an unprincipled womanizer’
    • ‘If I can choose my enemy, I prefer an unprincipled politician to a disguised true believer.’
    • ‘The throne was no longer at issue; now she was merely an eccentric noblewoman running from an unprincipled enemy.’
    • ‘Some unknown, unprincipled rascal wins a bunch of tickets for the first Test and promptly sells them on e-bay.’
    • ‘There could hardly be a more graphic illustration of how putting power in the hands of unprincipled people can bring a community down, if it yields to such pressure.’
    • ‘The unprincipled behaviour of the Bush administration has been met with principled conduct and objections.’
    • ‘I'm the first to admit that I think that John Kerry is a sleazy, unprincipled politician.’
    • ‘When grasping and unprincipled people begin to test the patience of the general public, I believe they have something to worry about.’
    • ‘But then given his ruthlessly unprincipled behaviour in 1975 such behaviour shouldn't be unexpected.’
    • ‘You are completely unprincipled and have no interest whatsoever in morals, justice or fairness of any kind.’
    • ‘Perhaps you would prefer we returned to the unprincipled behaviour displayed by Keating and friends, conveniently termed diplomacy.’
    • ‘It's safer and it won't make other people seem as stupid as you are unprincipled.’
    • ‘Later events proved him in fact to have been a ‘daring and unprincipled scoundrel’.’
    • ‘Your builder would appear to be one of those unprincipled persons.’
    • ‘Because, Margo, we are not unprincipled and we do believe in forming a Government.’
    • ‘Blair's defiance is possible only because of the unprincipled character of the opposition he faces.’
    • ‘The attitude taken by the Post highlights the hypocritical and unprincipled character of its criticisms of the Bush administration.’
    • ‘History shows us that it is in exactly such times that unprincipled men such as Schröder can be expected to do crazy things.’
    • ‘And since Bush is a canny and very unprincipled politician, he will not want to play in a game in which the odds are so heavily against him.’
    • ‘In reality, its just one more time that you will show that you are simply an unprincipled coward.’
    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
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Pronunciation

unprincipled

/ʌnˈprɪnsɪp(ə)ld/