imperious vs swaggering

imperious

adj

  • Domineering, arrogant, or overbearing. 

  • Urgent. 

swaggering

adj

  • Boastful, proud, self-confident. 

noun

  • Boastful, blustering behaviour. 

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