austere vs abstemious

austere and abstemious both are adjectives.

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

austere (adjective)	abstemious (adjective)
practicing great self-denial	sparing in consumption of especially food and drink
of a stern or strict bearing or demeanor; forbidding in aspect	marked by temperance in indulgence
severely simple