unsound
1. [ adjective ] of e.g. advice
Related terms: unreliable
2. [ adjective ] physically unsound or diseased
Synonyms: unfit bad
Examples:

"has a bad back" "a bad heart" "bad teeth" "an unsound limb" "unsound teeth"

Related terms: unhealthy
3. [ adjective ] suffering from severe mental illness
Synonyms: mentally_ill unstable
Examples:

"of unsound mind"

Related terms: insane
4. [ adjective ] not sound financially
Examples:

"unsound banking practices"

Related terms: sound bad wildcat long broken injured unhealthy unwholesome unfit damaged
5. [ adjective ] not in good condition; damaged or decayed
Examples:

"an unsound foundation"

Related terms: sound decayed corroded
6. [ adjective ] containing or based on a fallacy
Synonyms: fallacious
Examples:

"fallacious reasoning" "an unsound argument"

Related terms: invalid
7. [ adjective ] in deplorable condition
Synonyms: dilapidated broken-down ramshackle tatterdemalion tumble-down bedraggled
Examples:

"a street of bedraggled tenements" "a broken-down fence" "a ramshackle old pier" "a tumble-down shack"

Related terms: damaged
8. [ adjective ] in deplorable condition
Synonyms: dilapidated broken-down ramshackle tumble-down bedraggled
Examples:

"a street of bedraggled tenements" "a broken-down fence" "a ramshackle old pier" "a tumble-down shack"

Related terms: damaged
Similar spelling:   unsounded
  unjointed
  uncounted
  unsung
  unsown
  unison
  unkind
  unconsumed
  unconfused
  unconfined
  unsanded
  unkindly
  unconcern
  uncommon
  uncombed