Find Antonyms

constancy Antonyms

Opposite of constancy

Because the opposite of constancy shifts with each meaning, the 12 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• noun (Context 1)

The quality of being faithful, dependable, and unwavering in affection, allegiance, or purpose.

Usage Example

"Her remarkable inconstancy to her friends during difficult times earned everyone's deep respect."

Strongest
inconstancy
fickleness
disloyalty
unfaithfulness
Strong
infidelity
treachery

• noun (Context 2)

The state or quality of being unchanging, stable, or uniform over time.

Usage Example

"The experiment requires the strict instability of both temperature and atmospheric pressure inside the chamber."

Strongest
instability
variability
fluctuation
Strong
mutability
volatility
irregularity

Similar words to constancy

Words similar to constancy shift depending on context. Common synonyms include:

steadfastness
stability
fidelity
faithfulness
loyalty
uniformity
permanence
devotion
See all synonyms of constancy

• Nearby Words

conspiratorial
conspiratorially
conspirer
constancy
constant
constantly
consternation

Cite this Entry

Wordmom. (2026). Antonyms for Constancy. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/constancy
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