Noun has 2 senses

• averageness(n = noun.state) - the state of being that is average; indicates normality but with connotations of mediocrity;

Derived form adjective average₁, adjective average₂, adjective average₃

• averageness(n = noun.attribute) mediocrity - ordinariness as a consequence of being average and not outstanding;

Derived form adjective average₂, adjective average₃