Judicious
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irrational, futile, impolitic, ignorant, silly, absurd, sottish, foolish, incautious, hasty, dull, inopportune, inexpedient, simple, indiscreet, imprudent, unrealistic, injudicious, unwise, profitless, stupid, reckless, undiscerning, unsound, obtuse, inattentive, unseasonable, untimely, rash, heedless, unprofitable, nonsensical, idiotic, unintelligent, senseless, careless, uncareful, unreasonable, thoughtless, unfeasible, impractical.