the quality of being enduring and free from change or variation
同义词：stability
(psychology) the tendency for perceived objects to give rise to very similar perceptual experiences in spite of wide variations in the conditions of observation
同义词：perceptual constancy
faithfulness and dependability in personal attachments (especially sexual fidelity)
constancy例句
He is a husband of constancy.
他是个忠贞不渝的丈夫。
He has constancy of purpose.
他有坚定不移的目标。
constancy详细解释
con.stan.cy n.（名词）Steadfastness, as in purpose or affection; faithfulness.坚定：（目标或感情上的）坚定不移；忠诚The condition or quality of being constant; changelessness.始终如一：始终如一的情形或性质；持久不变
