From Longman Dictionary of Contemporary Englishsamenesssame‧ness /ˈseɪmnəs/ noun [uncountable] SAMEBORINGa boring lack of variety, or the quality of being very similar to something else
Examples from the Corpus
sameness• Gone the sense of being squashed into nothing by flatness and sameness.• And there is considerable sameness in what we do from day to day.• If we can understand the identity of the criteria of sameness of use, then we can understand the sameness of meaning.• Emergence of difference is often experienced as a shock to the whole system, a sudden puncturing of the illusion of sameness.• Too many lawyers complain about the sameness of their activity, day to day, month to month. 