impairment vs weediness

impairment

noun
  • an inefficient part or factor. 

  • A deterioration or weakening 

  • The result of being impaired 

  • A downward revaluation, a write-down. 

  • A disability or handicap 

weediness

noun
  • The quality of being weedy or feeble. 

  • The quality of resembling, or being overgrown with, weeds. 

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