smirk noun

ADJ. arrogant, knowing, patronizing, self-satisfied

VERB + SMIRK have She had a self-satisfied smirk on her face. | give She gave a knowing smirk. | conceal, hide He made no attempt to conceal his smirk.

SMIRK + VERB flicker A smirk flickered at the corner of his mouth as he watched my struggle.

PREP. with a ~ ‘Comfortable?’ he asked with a smirk. | ~ of a smirk of triumph