the quality of wearisome constancy, routine, and lack of variety; "he had never grown accustomed to the monotony of his work"; "he was sick of the humdrum of his fellow prisoners"; "he hated the sameness of the food the college served"
the property of a sensation that is rich and pleasing; "the music had a fullness that echoed through the hall"; "the cheap wine had no body, no mellowness"; "he was well aware of the richness of his own appearance"
the quality of being enduring and free from change or variation; "early mariners relied on the constancy of the trade winds"
faithfulness and dependability in personal attachments (especially sexual fidelity)
(psychology) the tendency for perceived objects to give rise to very similar perceptual experiences in spite of wide variations in the conditions of observation