unscrupulous Synonyms

shady underhand underhanded unfair unjust unlawful unprincipled unreputable untruthful unconscionable treacherous traitorous shameless sharp shifty slippery sly sneaky snide swindling venal villainous wicked amoral dishonourable unethical one-eyed opportunistic unsportsmanlike unconscientious unscrupulously machiavellian scoundrelly below the belt wily wrongful untrustworthy unprofessional duplicitous two-faced unapologetic dodgy unsporting seducible artful deceitful designing devious dirty dishonest