[adjective] severely simple; "a stark interior" Synonyms:severe, stark
[adjective] of a stern or strict bearing or demeanor; forbidding in aspect; "an austere expression"; "a stern face" Synonyms:stern
[adjective] 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" Synonyms:ascetic, ascetical, spartan