sane adj: mentally sound; specif: able to understand one's actions and distinguish right from wrong
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.
animi, balanced, clearheaded, competent, coolheaded, judicious, legitimate, levelheaded, logical, lucid, mentally sound, mentis compos, normal, rational, realistic, reasonable, responsible, sanus, sensible, sober, sober-minded, sound, understanding, undisturbed
lucid, rational, sensible
Burton's Legal Thesaurus. William C. Burton. 2006
adj.Of sound mind; in possession of one’s mental faculties; not insane.n.sanity
The Essential Law Dictionary. — Sphinx Publishing, An imprint of Sourcebooks, Inc. Amy Hackney Blackwell. 2008.
n. The condition of having a sound and rational mind; being mentally healthy and having the ability to distinguish right from wrong. In all jurisdictions, being sane is presumed, and it is up to the defense to prove the contrary to be true. Synonymous with sanity.@ sanity hearing1 An examination of one's mental competency to see whether one is mentally equipped to stand trial.2 A court proceeding, held to determine whether a person's mental health dictates institutionalization.@
Webster's New World Law Dictionary. Susan Ellis Wild. 2000.