| hesitant(adjective, nervous, shy, irregular, fearful) |
| jerky(adjective, irregular, unreliable, variable, random) |
| kinky(adjective, happy, informal, perfect, unusual) |
| scatterbrained(adjective, careless, excited, irregular, fickle) |
| spasmodic(adjective, unstable, irregular, unsettled, unpredictable) |
| spastic(adjective, irregular, irresolute, motiveless) |
| spineless(adjective, nervous, shy, irregular, fearful) |
| wandering(adjective, irregular, irresolute, motiveless) |
| wanton(adjective, free, careless, wild, reckless) |
| whimsy(adjective, characteristic, person, temper, way) |
| unreasonable(adjective, chance, irregular, irrational, uninformed) |
| unsystematic(adjective, irregular, erratic, random, haphazard) |
| ambivalent(adjective, nervous, shy, irregular, feeble) |
| crank(adjective, characteristic, person, character, temper) |
| faithless(adjective, false, dishonest, deceitful, unreliable) |
| flitting(adjective, irregular, irresolute, motiveless) |
| fly-by-night(adjective, careless, foolish, dishonest, immoral) |
| promiscuous(adjective, easy, attitude, behavior, sexual moral) |
| reasonless(adjective, foolish, stupid, irregular, senseless) |
| restless(adjective, unstable, irregular, unsettled, irresolute) |