whimsical Antonyms

not fun unchanging unideal steadfast statistical sound sober settled set serious sensible sane rigorous regular unalterable unchangeable sobersided dry as dust unvarying commonsensical tough-minded down-to-earth unarbitrary no-nonsense hardheaded unmodifiable hard-boiled levelheaded long-lasting reasonable realistic rational firm estimative equable earthy customary constant common changeless calculable black letter betoken behaving archetypical fixed grounded predictable pragmatical practical