commonness

(noun) the state of being that is commonly observed. Synonyms: expectedness.

(noun) the quality of lacking taste and refinement. Synonyms: coarseness, grossness, vulgarity, vulgarism, raunch.

(noun) ordinariness as a consequence of being frequent and commonplace. Synonyms: commonplaceness, everydayness.

(noun) sharing of common attributes. Synonyms: commonality.