adjective
A descriptive word that modifies a noun or pronoun, in this case, 'abstinent' describes someone who refrains from indulging in certain activities, typically related to food or drink.
The patient has been abstinent from alcohol for six months.
She's been abstinent from junk food for a week now.
I'm trying to stay abstinent from social media this weekend.
The artist remained abstinent from using any colors in his latest painting.