| candid(adjective, thoughtless, unwary) |
| frank(adjective, thoughtless, unwary) |
| helpless(adjective, weak, susceptible, vulnerable, insecure) |
| rash(adjective, careless, bold, thoughtless, impulsive) |
| spontaneous(adjective, thoughtless, impulse, unwary) |
| weak(adjective, tender, careless, thoughtless, susceptible) |
| defenseless(adjective, weak, tender, loose, susceptible) |
| impulsive(adjective, careless, bold, thoughtless, impulse) |
| inadvertent(adjective, casual, happy-go-lucky, slapdash) |
| straightforward(adjective, thoughtless, unwary) |
| uncircumspect(adjective, neglect, careless, casual, thoughtless) |
| unconscious(adjective, thoughtless, unwary) |
| unpremeditated(adjective, thoughtless, impulse, unwary, nonpreparation) |
| unwise(adjective, thoughtless, unwary) |
| worry-free |
| casual(adjective, thoughtless, happy-go-lucky, slapdash, unwary) |
| hasty(adjective, careless, casual, bold, thoughtless) |
| improvident(careless, casual, bold, thoughtless, wary) |
| negligent(careless, casual, bold, thoughtless, wary) |
| offhand(adjective, neglect, casual, thoughtless, happy-go-lucky) |