austere

(s) severely simple
- a stark interior
stark, severe, stern,
(s) of a stern or strict bearing or demeanor; forbidding in aspect
- an austere expression
- a stern face
stern,
(s) 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
ascetic, ascetical, spartan,

stark severe stern ascetic ascetical spartan

Austen

austerely austereness