Pronunciation: (u-set'ik),[key] —n. 1. a person who dedicates his or her life to a pursuit of contemplative ideals and practices extreme self-denial or self-mortification for religious reasons.
2. a person who leads an austerely simple life, esp. one who abstains from the normal pleasures of life or denies himself or herself material satisfaction.
3. (in the early Christian church) a monk; hermit.
—adj.Also,as•cet'i•cal. 1. pertaining to asceticism.
2. rigorously abstinent; austere: an ascetic existence. 3. exceedingly strict or severe in religious exercises or self-mortification.