I have lived in the wet underground for so long time that all this makes a differentness in me from you.
Pictures of the local sun, and comments on its differentness from the sun that had nourished the human race since time began.
When they went to a window and looked out their differentness separated them infinitely from the people in the street.
late 14c., from Old French different (14c.), from Latin differentem (nominative differens) "differing, different," present participle of differre "to set apart" (see differ). Colloquial sense of "special" attested by 1912. Related: Differently.