| tireless(adjective, determined) |
| troubled(adjective, upset, excited, anxious, nervous) |
| uneasy(adjective, adverb, upset, excited, anxious) |
| unglued(adjective, upset, wild, excited, melancholy) |
| unquiet(adjective, upset, excited, anxious, nervous) |
| unstrung(adjective, upset, crazy, nervous, high) |
| untiring(adjective, determined, persevering) |
| uptight(adjective, upset, wild, excited, anxious) |
| vehement(adjective, intense, passionate, violent, fervent) |
| worked-up(adjective, upset, crazy, nervous, high) |
| worried(adjective, upset, wild, excited, anxious) |
| worried sick(expression, adjective, upset, excited, anxious) |
| wound-up(adjective, upset, crazy, nervous, high) |
| wreck(adjective, upset, excited, anxious, nervous) |
| anxious(adjective, adverb, upset, wild, excited) |
| active(adjective, activity, moving, keen, smart) |
| affected(adjective, upset, crazy, nervous, high) |
| alert(adjective, moving, keen, intense, energetic) |
| antsy(adjective, upset, excited, anxious, nervous) |
| apprehensive(adjective, upset, excited, anxious, nervous) |