Source : WordNet®

ascetical
     adj 1: pertaining to or characteristic of an ascetic or the
            practice of rigorous self-discipline; "ascetic
            practices" [syn: {ascetic}]
     2: practicing great self-denial; "Be systematically
        ascetic...do...something for no other reason than that you
        would rather not do it"- William James; "a desert nomad's
        austere life"; "a spartan diet"; "a spartan existence"
        [syn: {ascetic}, {austere}, {spartan}]