'Constancy' definitions:

Definition of 'constancy'

(from WordNet)
noun
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]
noun
(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]
noun
Faithfulness and dependability in personal attachments (especially sexual fidelity)

Definition of 'Constancy'

From: GCIDE
  • Constancy \Con"stan*cy\, n. [L. constantia: cf. F. constance. See Constant.]
  • 1. The state or quality of being constant or steadfast; freedom from change; stability; fixedness; immutability; as, the constancy of God in his nature and attributes. [1913 Webster]
  • 2. Fixedness or firmness of mind; persevering resolution; especially, firmness of mind under sufferings, steadiness in attachments, or perseverance in enterprise; stability; fidelity. [1913 Webster]
  • A fellow of plain uncoined constancy. --Shak. [1913 Webster]
  • Constancy and contempt of danger. --Prescott.
  • Syn: Fixedness; stability; firmness; steadiness; permanence; steadfastness; resolution. See Firmness. [1913 Webster]

Synonyms of 'constancy'

From: Moby Thesaurus