That would be "sane".
The answer is sane
The best word to use to describe someone who is mentally healthy and sound is stable. This means that they are sane and sensible and not likely to fail.
'Sound and safe', usually expressed as 'safe and sound' means being very safe; being free from danger and from injury or ill-health. The phrase is frequently used when something, often a person, has been missing and then found in good health, or good condition. 'Safe' speaks for itself; 'sound' is from an old usage in English, indicating good health: 'sound in body and mind', 'sound in limb', or 'sound in wind', meaning respectively mentally and physically healthy, having arms and legs in good working order, or having good lung capacity.
Mens sana in corpore sano (a healthy mind in a healthy body) is a famous Latin quotation, often translated as "A sound mind in a sound body." It is derived from Satire X of the Roman poet Juvenal .
A sound mind means having the capacity to think in realistic and reasonable terms to advance yourself and the society. A sound body means that you can physically do whatever it is your mind has put forth as the right thing. Basically, if you make up your mind to be a surgeon, but your hands shake, then you do not have a sound mind to accomplish the aforementioned task (set forth by your mind)
Pane
The word would be sane.
Sune
To be mentally healthy and sound, is to be sane!
sane
Sung
sane
The answer is sane
The best word to use to describe someone who is mentally healthy and sound is stable. This means that they are sane and sensible and not likely to fail.
A mentally healthy or sound individual is often referred to as "mentally well" or having "positive mental health." This term encompasses emotional stability, resilience, and the ability to cope with stress and challenges effectively. Such individuals typically exhibit a balanced mindset, maintain healthy relationships, and possess a sense of purpose and fulfillment in life.
She is a busy mom of 8, very normal and healthy and is of sound mind ... and body
sound