| irrational(adjective, careless, foolish, stupid, unreasonable) |
| blind(adjective, dull, careless, indifferent, sympathetic) |
| thoughtless(adjective, dull, careless, indifferent, foolish) |
| unthinking(adjective, careless, foolish, stupid, unreasonable) |
| mindless(adjective, careless, foolish, stupid, unreasonable) |
| reasonless(foolish, unreasonable, irrational, illogical, arbitrary) |
| brainless(foolish, unreasonable, illogical, imbecility folly) |
| senseless(adjective, careless, foolish, stupid, unreasonable) |
| unintelligent(adjective, imbecility folly) |
| unreasonable(adjective, careless, foolish, stupid, irrational) |
| vacuous(adjective, careless, stupid, empty, unthinking) |
| brute(adjective, brutish) |
| foolish(adjective, careless, stupid, unreasonable, thoughtless) |
| heedless(adjective, dull, careless, indifferent, thoughtless) |
| nonrational |
| partisan(adjective, collateral, interested, prejudiced, subsidiary) |
| unintellectual(adjective, imbecility folly) |
| witless(careless, stupid, thoughtless, unthinking, inconsiderate) |
| absurd(adjective, foolish, unreasonable, irrational, illogical) |
| animal |