sanity

Sanity is the opposite of insanity. When you have sanity, you're mentally healthy and not acting crazy.

Sanity is a word for having a healthy state of mind — people with sanity don't have any loose marbles. Outside of mental hospitals, people often use this word in an exaggerated way when they've had a stressful, difficult day, shouting "I'm losing my sanity!" But if you actually lost your sanity, you'd need some serious medical attention. Besides, it usually takes more than one bad day to push someone over the edge.

Definitions of sanity
  1. noun
    normal or sound powers of mind
    synonyms: saneness
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    Antonyms:
    insanity
    relatively permanent disorder of the mind
    types:
    lucidity
    a lucid state of mind; not confused
    rationality, reason, reasonableness
    the state of having good sense and sound judgment
    type of:
    mental health
    the psychological state of someone who is functioning at a satisfactory level of emotional and behavioral adjustment
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