sane
adj.adj. having a healthy mind and being able to think or behave in a normal way. You use it to describe someone who is sensible and makes good decisions.
adj. mentally sound and capable of rational thought or action. Often used to describe a person's state of mind or the quality of a decision in a stressful context.
He seems like a very sane and balanced person.
After a week of constant chaos at work, she needed a quiet weekend to stay sane.
In a world that often feels increasingly irrational, maintaining a sane perspective on global events requires a disciplined approach to information consumption and emotional regulation.
Learned borrowing from Latin sānus (“healthy; sane”). Doublet of sound.
Commonly follows linking verbs like 'be', 'seem', or 'stay'.