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English definition of “unprincipled”

unprincipled

adjective     /ʌnˈprɪn.sɪ.pl̩d/
having or showing no moral rules or standards of good behaviourBad and wrong behaviourDisobedientObeying and breaking the lawObedient and compliantMorally wrong and evilDishonest
(Definition of unprincipled adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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