| unreasoned(foolish, stupid, irrational, arbitrary, perverse) |
| unsane(adjective, crazy, mad, odd, insane) |
| unsuitable(adjective, proper, inappropriate, unbecoming, unfitting) |
| unsympathetic(adjective, bad, hard, tough, severe) |
| unwitting(adjective, unknowing, unaware, unsuspecting, realizing) |
| valueless(adjective, value, insignificant, unimportant, useless) |
| addle-pated |
| amorphous |
| anachronistic(adjective, absurd) |
| anaesthetized |
| baseless(foolish, unreasonable, illogical) |
| birdbrained(foolish, crazy, impulsive, insane, unintelligent) |
| bonkers(adjective, silly, foolish, unwise) |
| cataleptic(insensible, comatose, insentient) |
| causeless |
| cockamamie(weak, simple, foolish, unreasonable, illogical) |
| cockamamy(silly, foolish, thoughtless, unwise, unintelligent) |
| cracked(silly, foolish, stupid, unwise) |
| credulous(adjective, silly, stupid, green, fat) |
| criminal(adjective, wrong, illegal, unlawful, lawless) |