Ascetic – characterised by severe self-discipline and complete lack of indulgence or luxury, usually for religious reasons
A settee in the attic (ascetic) space was all she had. There were no luxuries.
Examples of ascetic in a sentence
Her apartment was so bare you'd think she lived an ascetic lifestyle.
He believed an ascetic existence was the only true way to live without sin.
They were forced to live nearly ascetic lives due to their criminally low salaries.