at ease vs worried

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. 

worried

adj
  • Thinking about unpleasant things that have happened or that might happen; feeling afraid and unhappy. 

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