Synonyms of the word

ascetic

• adj. Of or relating to ascetics; characterized by rigorous self-denial or self-discipline; austere; abstinent;…
• n. One who is devoted to the practice of self-denial, either through seclusion or stringent abstinence.

abstainer

• n. Agent noun of abstain; one who abstains; especially, one who abstains from something, such as the use…

abstemious

• adj. Sparing in diet; refraining from a free use of food and strong drinks; temperate; abstinent; sparing in…
• adj. Sparingly used; used with temperance or moderation.
• adj. Marked by, or spent in, abstinence.
• adj. (rare) Promotive of abstemiousness.

ascetical

• adj. ascetic.

austere

• adj. Grim or severe in manner or appearance.
• adj. Lacking trivial decoration; not extravagant or gaudy.

spartan

• adj. Austere, frugal, characterized by self-denial.
• adj. Resolute in the face of danger or adversity.
• adj. Lacking in decoration and luxury.