Definition of awesomeness in English:

awesomeness

noun

mass noun
  • 1The quality of being extremely impressive or daunting.

    ‘the Hubble telescope presents the mind-blowing awesomeness of the universe’
    ‘I can't imagine its awesomeness at sunset’
    1. 1.1informal The quality of being extremely good; excellence.
      ‘it's nice to have such an abundance of sci-fi awesomeness available at once’

Pronunciation

awesomeness

/ˈɔːs(ə)mnəs/