'ascetical' definitions:

Pertaining to or characteristic of an ascetic or the practice of rigorous self-discipline; "ascetic practices" [syn: ascetic, ascetical]

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, ascetical, austere, spartan]