at ease vs twitchy

at ease

prep
  • Allowed to refrain from being in rigid formation. 

  • Free of anxiety; not stressed or tense. 

  • In a relaxed position with the feet apart rather than at attention. 

twitchy

adj
  • susceptible to twitching a lot. 

  • irritable, cranky 

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