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Another word for unsound

a-z
Adjective
  1. Not physically strong

    See also:

    strong

  2. Afflicted with or exhibiting irrationality and mental unsoundness

  3. Containing fundamental errors in reasoning

  4. Containing an error or errors

  5. Not wise

    See also:

    wise

Another word for unsound

Modifier
  1. False

  2. Insecure

    See also:

    unstable