adj. 1 (of a person or action) deliberately or stubbornly departing from what is reasonable or required. 2 persistent in error. 3 wayward; intractable; peevish. 4 perverted; wicked. 5 (of a verdict etc.) against the weight of evidence or the judge's direction. perversely adv. perverseness n. perversity n. (pl. -ies).
[ ME f. OF pervers perverse f. L perversus (as PERVERT) ]