austere
au-stere
adjective
Lacking comforts or luxuries; simple, harsh, or ascetic.
"They lived an austere existence."
adjective
Strictly simple, severe, or unadorned in manner or appearance.
"Her austere expression discouraged chatter."
adjective
Imposing strict limits on spending; severe and restrictive.
"The government introduced austere economic measures."
Thesaurus
Synonyms: stern, strict, nonindulgent, abstemious, spartan, ascetical, ascetic, stark, plain, severe