sanitynoun [ U ]
uk/ˈsæn.ə.ti/us/ˈsæn.ə.t̬i/the state of having a healthy mind and not being mentally ill:
He'd been behaving so strangely that they began to doubt/question his sanity.
 to keep/preserve/retain your sanity
the fact of showing good judgment and understanding:
The closer we got to the deadline for action, the more I questioned the sanity of the decision we had taken.
 Maybe Jenny can bring some sanity into this crazy situation.
Thesaurus: synonyms and related words
Healthiness of mind
- be of sound/unsound mind idiom
 - compos mentis
 - healthy
 - mental health
 - mind
 - normality
 - sane
 - self-awareness
 - self-knowledge
 - sense
 - well adjusted
 - well balanced