principled Antonyms

unprincipled mischief-making shameful shifty shy sigmoid sinful sinuate sinuation sinuose sinusoidal slippery sulphurous twirling twisted shady rotten mischievous nasty naughty nefarious orbital outrageous perverse picaresque praetorian pudendal purchasable rakehelly restiff roguish unconscionable unequitable untrustworthy agee lying in wait impish implike malware ill-intentioned unethical opportunistic unpredictable sinuously unsportsmanlike s-shaped wrong writhen wriggling unfair