at ease vs self-conscious

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. 

self-conscious

adj
  • Uncomfortably over-conscious of one's appearance or behaviour; socially ill at ease. 

  • Excessively conscious of one's appearance or behaviour. 

  • Aware of oneself as an individual being. 

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