screw loose vs sensible

screw loose

noun
  • A state of insanity or eccentricity. 

sensible

adj
  • Able to be sensed by the senses or the psyche; able to be perceived. 

  • Acting with or showing good sense; able to make good judgements based on reason, or reflecting such ability. 

  • Characterized more by usefulness, practicality, or comfort than by attractiveness, formality, or fashionableness, especially of clothing. 

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