inertia vs malaise

inertia

noun
  • In a person, unwillingness to take action. 

  • Lack of activity; sluggishness; said especially of the uterus, when, in labour, its contractions have nearly or wholly ceased. 

  • The property of a body that resists any change to its uniform motion; equivalent to its mass. 

malaise

noun
  • Ill will or hurtful feelings for others or someone. 

  • A feeling of general bodily discomfort, fatigue or unpleasantness, often at the onset of illness. 

  • An ambiguous feeling of mental or moral depression. 

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