- the quality of having a resolute mind, purpose, or affection; steadfastness
- freedom from change or variation; stability
- the perceptual phenomenon in which attributes of an object appear to remain the same in a variety of different presentations, e.g., a given object looks roughly the same size regardless of its distance from the observer
- the frequency of occurrence of a particular species in sample plots from a plant community
WordReference Random House Learner's Dictionary of American English © 2026
con•stan•cy /ˈkɑnstənsi/USA pronunciation
n. [uncountable]
WordReference Random House Unabridged Dictionary of American English © 2026- the quality of staying constant.
- regularity;
stability.
con•stan•cy
(kon′stən sē),USA pronunciation n.
- the quality of being unchanging or unwavering, as in purpose, love, or loyalty;
firmness of mind;
faithfulness. - uniformity or regularity, as in qualities or conditions;
invariableness.
- Latin constantia. See constant, -ancy
- 1520–30
- 1. resolution, steadfastness, fidelity, fealty, loyalty, devotion. 2. permanence, regularity, dependability.
- 1. irresolution, infidelity. 2. fickleness.
Collins Concise English Dictionary © HarperCollins Publishers::
constancy /ˈkɒnstənsɪ/ n
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'constancy' also found in these entries (note: many are not synonyms or translations):
infidelity
- unity
- unsteady
- variable
- desultory
- forget-me-not
- loyalty
- truth
- stability
- steadfast
