Open English Wordnet
Adjectives
(s)spartanresolute in the face of pain or danger or adversity“spartan courage” (s)severe, spartanunsparing and uncompromising in discipline or judgment“a parent severe to the pitch of hostility” (H.G.Wells),
“a hefty six-footer with a rather severe mien”,
“a strict disciplinarian”,
“a Spartan upbringing” (s)ascetic, ascetical, austere, spartanpracticing 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”