More self-contradicting words:

• AUGHT (“anything” and “nothing”)
• BULL (“edict” and “nonsense”)
• ENJOIN (“prescribe” and “prohibit”)
• KICK OFF (“begin” and “die”)
• NERVY (“brash” and “timid”)
• RAVEL (“tangle” and “disentangle”)
• TEMPER (“harden” and “soften”)
• UNBENDING (“rigid” and “relaxing”)
• WEATHER (“withstand” and “wear away”)

Zing is appeal, but zinging is criticism.