1. Not sound; defective; as unsound timber.

2. Infirm; sickly; as unsound in health; an unsound constitution.

3. Not orthodox; defective; as unsound in faith; unsound doctrine.

4. Not sound in character; not honest; not faithful; not to be trusted; defective; deceitful.

5. Not true; not solid; not real; not substantial; as unsound pleasures; unsound delights.

6. Not close; not compact; as unsound cheese.

7. Not sincere; not faithful; as unsound love.

8. Not solid; not material.

9. Erroneous; wrong; deceitful; sophistical; as unsound arguments.

10. Not strong; as unsound ice.

11. Not fast; not calm; as unsound sleep.

12. Not well established; defective; questionable; as unsound credit.