| irresponsible(adjective, careless, foolish, dishonest, deceitful) |
| fleeting(adjective, short, unreliable, brief, shady) |
| untrustworthy(adjective, false, careless, foolish, uncertain) |
| fickle(adjective, careless, foolish, dishonest, immoral) |
| passing(adjective, unreliable, shady, transient, transitory) |
| temporary(adjective, short, unreliable, brief, shady) |
| ephemeral(adjective, light, weak, unreliable, brief) |
| fugitive(noun, adjective, person, short, brief) |
| short-lived(adjective, short, unreliable, brief, shady) |
| evanescent(adjective, short, unreliable, brief, shady) |
| impermanent(adjective, short, unreliable, brief, shady) |
| questionable(adjective, uncertain, dishonest, doubtful, deceitful) |
| undependable(adjective, false, careless, foolish, uncertain) |
| unreliable(adjective, false, careless, foolish, uncertain) |
| unsure(adjective, uncertain, nervous, dishonest, doubtful) |
| dubious(adjective, uncertain, nervous, dishonest, doubtful) |
| momentary(adjective, short, unreliable, brief, shady) |
| transient(adjective, moving, idle, unsettled, exile) |
| brief(adjective, short, unreliable, shady, temporary) |
| shady(adjective, bad, wrong, uncertain, dishonest) |