近义词
adj. unreasonable, irrational, unmotivated
反义词
n. reasonable, sensible, rational, motivated
联想词
irrational无理性的;illogical不合逻辑的;nonsensical无意义的;senseless无感觉的;inexplicable无法说明的;incomprehensible费解的;mindless不小心的;childish幼稚的，孩子气的;baseless无根据的;unjustified不公正的;inane愚蠢的;