powerlessness vs pusillanimity

powerlessness

noun
  • The state or character of being powerless; absence or lack of power. 

pusillanimity

noun
  • The quality or state of being pusillanimous; the vice of being timid and cowardly, and thus not living up to one's full potential; pusillanimousness. 

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