unsound

Etymology
.

Adjective

 * 1) Not sound, particularly:
 * 2) Not whole, not solid, defective.
 * 3)  Infirm, diseased.
 * 4)  Not good, unreliable.
 * 1)  Infirm, diseased.
 * 2)  Not good, unreliable.
 * 1)  Not good, unreliable.
 * 1)  Not good, unreliable.