off balance vs vertiginous

off balance

prep
  • surprised; perplexed 

  • Not physical balanced; not having physical equilibrium. 

vertiginous

adj
  • Inducing a feeling of giddiness, vertigo, dizziness or of whirling. 

  • Revolving; rotating; rotatory. 

  • Having an aspect of great depth, drawing the eye to look downwards. 

  • Pertaining to vertigo (in all its meanings). 

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