Awesomeness is the informal quality of being thrillingly impressive. Sheer awesomeness, the awesomeness of it, general awesomeness.
It belongs to casual praise rather than to anything stately, which is the whole difference between awesomeness and awe. The word is American and cheerfully unserious, and using it in formal writing is a joke.
1nounawesomenessThe informal quality of being thrillingly impressive, used in casual praise rather than of stately magnificence.
“Dude, the sheer awesomeness of that skateboard trick totally blew my mind!”
awesomeness is a quality.
From awesome + -ness.
Etymology from Wiktionary, CC BY-SA