| snarl |
| speculate(verb, consider, worry, fret, contemplate) |
| speechlessness(calm, quiet, speech, silence, softness) |
| stew over(verb, expression, consider, worry, idle) |
| still(calm, quiet, speech, silence, softness) |
| stillness(calm, quiet, speech, silence, softness) |
| stubbornness |
| sulking |
| sweat out(verb, expression, consider, worry, fret) |
| sweat over(verb, expression, consider, worry, idle) |
| taciturnity(calm, quiet, speech, silence, softness) |
| tantrum(noun, fit, temper, anger, rage) |
| tartness(noun, anger, rage, strop, tantrum) |
| think about(verb, expression, consider, worry, fret) |
| think upon(verb, expression, consider, worry, fret) |
| uncommunicativeness(calm, quiet, speech, silence, softness) |
| upset |
| vex |
| waste time(expression, languish, pine, brood, pout) |
| yearn(dejection, languish, pine, brood, pout) |