adjective
Definition: Choosing not to indulge in certain pleasures or desires, especially related to food, drink, or sexual activity. This means practicing self-control and moderation.
Example: He has been abstinent from alcohol for over a year now.
noun
Definition: A person who chooses not to engage in certain activities, especially those related to indulgence or excess, such as drinking alcohol or having sexual relations.
Example: As an abstinent individual, she chose to avoid alcohol at the party.