Constancy - Definition

n 1: the quality of being enduring and free from change or
variation; "early mariners relied on the constancy of the
trade winds" [syn: constancy, stability] [ant:
changefulness, inconstancy]
2: (psychology) the tendency for perceived objects to give rise
to very similar perceptual experiences in spite of wide
variations in the conditions of observation [syn:
constancy, perceptual constancy]
3: faithfulness and dependability in personal attachments
(especially sexual fidelity)