distemperate adjective3 •(no longer used) Immoderate, excessive.Thou hast thy brain distemperate, and out of rule. •(no longer used) Not temperate, of no good influence for one's confort or soundness; (figuratively) unwholesome, stormy. •(no longer used) Not properly tempered; disordered through excess or deficiency of some constituent; (by extensions, of bodily or mental condition) disordered, out of order; diseased, out of health; ill-conditioned. formsmore distemperate · most distemperate