| deluded(adjective, wrong, false, foolish, unreasonable) |
| determined(careless, thoughtless, impulsive, reckless, hasty) |
| devil-may-care(adjective, careless, wild, bold, thoughtless) |
| discordant(wrong, false, awkward, unsuitable, unfitting) |
| discrepant(wrong, false, awkward, unsuitable, unfitting) |
| doltish(dull, weak, simple, careless, silly) |
| dotty(weak, simple, silly, foolish, thoughtless) |
| dull(careless, stupid, unthinking, unintelligent, obtuse) |
| dumb(dull, foolish, stupid, unintelligent, witless) |
| duped(wrong, false, confused, inappropriate, incorrect) |
| fantastic(weak, simple, silly, foolish, thoughtless) |
| far ahead |
| fast(violent, quick, speedy, hurried) |
| fast-and-loose(adjective, careless, bold, thoughtless, impulsive) |
| fatuous(weak, simple, silly, foolish, thoughtless) |
| faulty(wrong, false, incorrect) |
| feebleminded(weak, simple, silly, foolish, thoughtless) |
| fiery(careless, quick, thoughtless, impulsive, reckless) |
| fooled(wrong, false, confused, inappropriate, incorrect) |
| foot-in-mouth(adjective, careless, bold, thoughtless, impulsive) |