/ seɪn; NAmE / adjective ( saner , san·est )
1.
having a normal healthy mind; not mentally ill
SYN of sound mind :
No sane person would do that.
Being able to get out of the city at the weekend keeps me sane .
2.
sensible and reasonable :
the sane way to solve the problem
OPP insane
—see also sanity
► sane·ly adverb
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WORD ORIGIN
early 17th cent.: from Latin sanus healthy.