term:

Sound

sound adj

1 a : free from injury or disease
: exhibiting normal health
b : free from flaw, defect, or decay [a design]
2 a : free from error, fallacy, or misapprehension [based on judicial reasoning]
b : legally valid [a title]
3 : showing good judgment or sense
sound·ly adv

sound·ness n


of sound mind
: having the mental capacity to make a will esp. as demonstrated by the ability to understand the nature of one’s property, identify the natural objects of one’s bounty, and understand the nature of the dispositions being made in the will

vi : to be based or founded
: have a specified basis for an action used with in [those remedies for rent which ed in contract “O. W. Holmes, Jr.”] [ing in tort]