This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
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n. The quality or state of being usual.

n. The state of being usual; commonness; frequency; customariness.

n. commonness by virtue of not being unusual

"But, because these articles are a simple record of what I have seen and what I have heard, they may perhaps be of use in bringing out of the shadow -- that awful shadow of "usualness" into which they have fallen -- many incidents that would, before the war, have roused the world to wonder, to pity and to infinite awe."

commonness    everydayness    commonplaceness   

familiarity   

usuality