Practical
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unreasonable, fantastic, unsound, impotent, trusting, worthless, incapable, inaccessible, unproficient, unsuspicious, inefficient, excited, unlikely, unfeasible, half-baked, unskilled, inapplicable, armchair, rose-colored, fanciful, abstract, quixotic, unseasoned, unsuitable, cheerful, impossible, illogical, visionary, imaginative, nonpractical, sentimental, untrained, utopian, unserviceable, unreachable, ineffective, unattainable, trustful, impractical, insane, irrational, useless, weak, inexperienced, unavailable, optimistic, blue sky, unworkable, unrealistic, unobtainable.