asceticism
as·ce·ti·cism
noun
1.
the doctrine that through renunciation of worldly pleasures it is possible to achieve a high spiritual or intellectual state
2.
the trait of great self-denial (especially refraining from worldly pleasures)
3.
rigorous self-denial and active self-restraint
Origin
From ascetic + -ism.
Related words
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.