| fickle(adjective, transient) |
| flickering(adjective, transient) |
| flying(fast, brief, rapid, swift, transitory) |
| fugacious(adjective, brief, transient, transitory, short-lived) |
| furious(adjective, haste) |
| headlong(adjective, fast, quick, rapid, speedy) |
| impetuous(adjective, fast, quick, rapid, speedy) |
| inattentive(adjective, slight, detail, careless, silly) |
| little |
| mortal(adjective, transient) |
| mutable(adjective, transient) |
| neglectful(adjective, careless, indifferent, sloppy, inattentive) |
| one-dimensional(adjective, slight, detail, casual, trivial) |
| prompt(adjective, fast, quick, rapid, speedy) |
| rootless(adjective, transient) |
| short-term(adjective, transient) |
| sloppy(adjective, careless, indifferent, casual, quick) |
| temporal(adjective, transient) |
| trivial(slight, flat, detail, casual, surface) |
| unheeding(casual, inattention, happy-go-lucky, slapdash) |