grim expression
- sternStrict or ship's aft
- somberGravely serious in mood
- scowlAngry facial expression
- frownDisapproving facial expression
- glareFierce stare or brightness
hardened · stony · cold · dark · severe · brooding · forbidding · sullen · dour · menacing · tight-lipped · jaw · clenched · steely · haunted · weathered · unsmiling · bleak
emotional valence
grim expressionbright smile
happy face · sunny disposition · beaming smile · warm smile · grin