wicked grin

• smirkPleased, superior smile
• sneerScornful expression
• deviousUnderhanded and calculating
• mischievousPlayfully causing trouble
• sinisterThreateningly suggestive of harm

sly · cunning · villain · teeth · lips · gleam · malice · playful · twisted · crooked · knowing · dark · menacing · impish · devilish · sardonic · glint · scheming

• smilesgrin, beam, smirk, simper, warm smile