grimace
C2Գոյական/US /ɡrˈɪməs/ GRĬM-əs; UK /ɡrˈɪməs/ GRĬM-əs/
A distortion of the countenance, whether habitual, from affectation, or momentary aad occasional, to express some feeling, as contempt, disapprobation, complacency, etc.; a smirk; a made-up face.
