deformed adjective Etymology: Middle English, from past participle of deformen to deform 1.obsolete a.: disfigured b.: formless, amorphous 2. a.: distorted or unshapely in form : misshapen especially in body or limbs : monstrous, loathsome < a deformed imagination > b.: subjected to deformation • de·formed·ly\-m(ə̇)dlē\adjective • de·formed·ness\-mə̇dnə̇s, -m(d)n-\noun-es