| daring(adjective, careless, wild, bold, thoughtless) |
| derelict(adjective, careless, criminal, negligent, aberrant) |
| dippy(adjective, silly, foolish, stupid, absurd) |
| dubious(adjective, dishonest, deceitful, unpredictable, unreliable) |
| faithless(adjective, dishonest, deceitful, unreliable, insecure) |
| gaga(adjective, silly, unstable, insane, unreliable) |
| harebrained(adjective, careless, wild, strange, excited) |
| immoral(adjective, careless, foolish, reckless, negligent) |
| inconsistent(adjective, loose, stupid, unstable, unsettled) |
| inconstant(adjective, unstable, unsettled, unpredictable, unreliable) |
| ineffectual(adjective, weak, careless, feeble) |
| infirm(adjective, irresolute) |
| injudicious(adjective, careless, foolish, chance, casual) |
| irrational(adjective, wrong, wild, silly, foolish) |
| madcap(adjective, wild, bold, thoughtless, vague) |
| mercurial(adjective, unstable, unsettled, unreliable, changeable) |
| nonchalant(adjective, feature, state, trait, casual) |
| nonsensical(adjective, silly, foolish, stupid, fantastic) |
| promiscuous |
| questionable(adjective, dishonest, deceitful, unpredictable, unreliable) |