mental vs unhinged

mental

adj
  • Of, relating to, or affected by a psychiatric disorder. 

  • Occurring or experienced in the mind. 

  • Of or relating to telepathic or mind-reading powers. 

  • Of, relating to, or being intellectual as contrasted with overt physical activity. 

  • Of or relating to the chin or median part of the lower jaw, genial. 

  • Relating to the mind, its activity, or its products as an object of study. 

  • Relating to spirit or idea as opposed to matter. 

  • Enjoyable or fun, especially in a frenetic way. 

  • Of or relating to the chinlike or liplike structure. 

  • Of or relating to intellectual as contrasted with emotional activity. 

  • Intended for the care or treatment of persons affected by psychiatric disorders. 

noun
  • A plate or scale covering the mentum or chin of a fish or reptile. 

unhinged

adj
  • Mentally ill or unstable. 

  • Not having ever been mounted using a stamp hinge. 

  • Not furnished with a hinge. 

How often have the words mental and unhinged occurred in a corpus of books? (source: Google Ngram Viewer )