underhanded Synonyms

underhand underarm sneaky unsporting undermanned underhandedly tricky treacherous surreptitious stealthy snide sly slippery slinking shifty shady unfair unprincipled undercover unsportsmanlike understaffed shorthanded unethical under-the-table behind-the-scenes duplicitous backstage back room untrustworthy wily venal unscrupulous secret scheming indirect deceptive deceitful cunning crooked crafty covinous covert corrupt conscienceless conniving clandestine calculating backstairs backdoor devious