| Simper 1. (v. i.) To smile in a silly, affected, or conceited manner. 2. (v. i.) To glimmer; to twinkle. 3. (n.) A constrained, self-conscious smile; an affected, silly smile; a smirk. Thesaurus Entries affected, beam, bridle, bright smile, broad grin, crack a smile, ear-to-ear grin, gleaming smile, glowing smile, grin, grinning, idiotic grin, mince, mince it, prink, sardonic grin, self-conscious, smile, smile brightly, smiling, smirk, stupid grin, toothful grin, vapid |