adjective
1.
Synonyms: unscrupulous , conscienceless, stick-at-nothing, unconscionable
Antonyms: principled
2.
Synonyms: abandoned 2, dissolute, licentious, profligate, reprobate, self-abandoned
Related Word: corrupt, crooked, unscrupulous; dishonest, unconscientious, unethical
3.
Synonyms: corrupt 2, mercenary, praetorian, unethical, unscrupulous, venal
Antonyms: principled