at ease vs in a dither

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. 

in a dither

prep
  • In a state of indecision. Flustered 

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