spartan vs austere

spartan and austere both are adjectives.

Word	Noun	Adjective	Verb	Adverb
spartan	No	Yes	No	No
austere	No	Yes	No	No

As adjectives, spartan and austere are synonyms defined as:

Other synonyms of spartan include ascetic, ascetical.

spartan (adjective)	austere (adjective)
practicing great self-denial	practicing great self-denial
unsparing and uncompromising in discipline or judgment	of a stern or strict bearing or demeanor; forbidding in aspect
resolute in the face of pain or danger or adversity	severely simple