sane
adjective
[ seɪn ]
• (of a person) of sound mind; not mad or mentally ill.
• "hard work kept me sane"
Similar:
of sound mind,
right in the head,
in one's right mind,
able to think/reason clearly,
lucid,
clear-headed,
rational,
coherent,
balanced,
well balanced,
stable,
normal,
compos mentis,
all there,
Origin:
early 17th century: from Latin sanus ‘healthy’.