Main entry: unsound
Definition: of e.g. advice
Main entry: bad, unsound, unfit
Definition: physically unsound or diseased
Usage: has a bad back; a bad heart; bad teeth; an unsound limb; unsound teeth
Main entry: mentally ill, unsound, unstable
Definition: suffering from severe mental illness
Usage: of unsound mind
Main entry: unsound
Definition: not sound financially
Usage: unsound banking practices
Main entry: unsound
Definition: not in good condition; damaged or decayed
Usage: an unsound foundation
Main entry: unsound, fallacious
Definition: containing or based on a fallacy
Usage: fallacious reasoning; an unsound argument