Synonyms of blackguardly

Adjective

1. rascally, roguish, scoundrelly, blackguardly, dishonest (vs. honest), dishonorable

usage: lacking principles or scruples; "the rascally rabble"; "the tyranny of a scoundrelly aristocracy" - W.M. Thackaray; "the captain was set adrift by his roguish crew"