rational Antonyms - page 5

conjectural chapped cam buggy buffoonish aberrational hatstand self-contradictory obtuse nutty nougat non compos mentis non compos neurotic moonstruck mindless mental mazed mashed maniacal maniac madman opinionate overzealous paradoxical scatter-brained roiled risible ridiculous revolutionist reckless reasonless raving rash rabid psychiatric preposterous phrenetic paroxysmal madding mad ma incogitable incensed incautious inadvisable imprudent impractical impolitic implausible