Usage patterns
禁欲的な生活an austere/self-denying lifestyle
He leads a monk-like, austere lifestyle.
禁欲的な人a self-disciplined, abstemious person
She's a very abstemious person who never eats sweets at all.
禁欲的に暮らすto live an austere, self-denying life
He chose to give up his wealth and live austerely.