UNREASONABLE

adj. 1 irrational, illogical, unthinking, absurd, foolish, senseless, nonsensical, mindless, brainless, thoughtless, silly, mad, crazy, insane, idiotic, moronic, imbecilic, stupid, fatuous, ridiculous, ludicrous, laughable, preposterous, far-fetched, short-sighted, unperceptive, unperceiving, undiscerning, myopic, blind Some people have an unreasonable aversion to anything scientific Is it unreasonable to expect you to spend a little time with your mother? 2 excessive, outrageous, exorbitant, extravagant, immoderate, extortionate, inordinate, unconscionable, unjust, unwarranted, inequitable, unfair, unequal, improper, unjustified, unjustifiable, uncalled-for The new tax puts an unreasonable demand on those with lower incomes 3 inappropriate, unapt or inapt, unsuitable, unbefitting, impractical, unrealistic His conduct was quite unreasonable for a man of the cloth