soi-disant vs would-be

soi-disant

adj
  • Self-styled; self-proclaimed. 

adv
  • supposedly 

would-be

adj
  • Attempting or desiring something. 

  • Unfulfilled; frustrated in realizing a goal, ambition, etc. 

noun
  • One who aspires to something. 

  • One's fiancé or fiancée. 

How often have the words soi-disant and would-be occurred in a corpus of books? (source: Google Ngram Viewer )