From Longman Dictionary of Contemporary Englishsanesane /seɪn/●くろまる○しろまる○しろまる adjective1HBHable to think in a normal and reasonable wayOPP insane, mentally ill → sanityHe seems perfectly sane (=completely sane) to me.No sane person would want to kill a baby.2SENSIBLEreasonable and based on sensible thinkinga sane and sensible approach to gun control3 →keep somebody sane —sanely adverbExamples from the Corpussane• But when I awoke I was sane.• It is readable, reasonably comprehensive and its recommendations, when I have been able to check them out, seem sane.• To his neighbours, Peter appeared perfectly sane.• Of course he isn't mad. He's as sane as you or I.• And quite sane friends of mine, whose opinions I respect over other things, believe in this terriblereligion.• Exercise keeps me sane. If I didn't exercise, the stress would get to me.• He was sane in every respect but one, and that was his stratospheric sense of self-importance.• No sane person would accept a high-level job there.• No sane person would believe such garbage!• I don't think any sane person would take his threats seriously.• Their withdrawal, their separatism, was, they said, a saneresponse to an insane world.• Who among us is so righteous that a sanesociety would entrust her with the power to obliterate a city?• It was a relief to hear one sanevoice among all the shouting and hysteria.• Masstransit is the only sane way to get around New York.perfectly sane• Precious, precocious, pretentious and very much in control, he seems perfectly sane.Originsane(1600-1700)Latinsanus"healthy, sane"