"ascetic" in the noun sense
1. abstainer, ascetic
someone who practices self denial as a spiritual discipline
"ascetic" in the adjective sense
1. ascetic, ascetical
pertaining to or characteristic of an ascetic or the practice of rigorous self-discipline
2. ascetic, ascetical, austere, spartan
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"
Source: WordNet® (An amazing lexical database of English)
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