| groundless(adjective, characteristic, quality, inactivity, idleness) |
| hollow(adjective, characteristic, quality, inactivity, idleness) |
| required(adjective, characteristic, need, requirement) |
| absurd(adjective, quality, irrationality, illogicality) |
| casuistic(adjective, quality, irrationality, illogicality) |
| cockeyed(adjective, quality, irrationality, illogicality) |
| fallacious(adjective, quality, irrationality, illogicality) |
| faulty(adjective, quality, irrationality, illogicality) |
| illogical(adjective, quality, irrationality, illogicality) |
| imperative(adjective, characteristic, need, requirement) |
| inconclusive(adjective, quality, irrationality, illogicality) |
| invalid(adjective, quality, irrationality, illogicality) |
| irrational(adjective, quality, irrationality, illogicality) |
| mad(adjective, quality, irrationality, illogicality) |
| meaningless(adjective, quality, irrationality, illogicality) |
| nutty(adjective, quality, irrationality, illogicality) |
| preposterous(adjective, quality, irrationality, illogicality) |
| senseless(adjective, quality, irrationality, illogicality) |
| sophistical(adjective, quality, irrationality, illogicality) |
| spurious(adjective, quality, irrationality, illogicality) |