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Definitions

constant

[kon-stuhnt] / ˈkɒn stənt /
ADJECTIVE
fixed
Synonyms
STRONGEST
consistent continual nonstop perpetual regular stable steady unbroken uninterrupted
STRONG
even firm invariable monochrome permanent stabile uniform
WEAK
connected equable habitual homogeneous immutable like the Rock of Gibraltar monophonic monotonous of a piece regularized solid as rock standardized steadfast together unalterable unchanging unflappable unfluctuating unvarying
Antonyms
STRONGEST
broken discontinuous imbalanced inconsistent inconstant infrequent intermittent interrupted irregular temporary unfixed unstable unsteady wobbly
STRONG
changeable changing different
WEAK
concluding disloyal ending fickle flagging fluctuating stopping terminable terminating undecided undetermined untrue untrustworthy varying wavering
ADJECTIVE
neverending
Synonyms
STRONGEST
ceaseless chronic continual continuous endless eternal incessant nonstop perpetual persistent relentless sustained unending uninterrupted unrelenting unremitting
STRONG
everlasting
WEAK
abiding enduring interminable lasting persisting
Antonyms
STRONGEST
brief broken ceasing completed discontinuous ending ephemeral finished halting infrequent intermittent interrupted merciful occasional relenting stopping sympathetic temporary terminable transient
WEAK
changeable concluding disloyal fickle flagging fluctuating inconstant irregular terminating undecided undetermined unstable unsteady untrue untrustworthy varying wavering
ADJECTIVE
loyal, determined
Synonyms
STRONG
faithful fast true trusty
WEAK
allegiant attached dependable devoted dogged persevering resolute staunch tried-and-true trustworthy unfailing unflagging unshaken unwavering
Antonyms
STRONG
dishonest disloyal false untrustworthy
WEAK
changeable concluding ending fickle flagging fluctuating inconstant interrupted irregular stopping terminable terminating undecided undetermined unstable unsteady untrue varying wavering

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“Everything that’s happening in the Middle East. I’m seeing prices rise at the supermarket. And of course we have this constant thread of AI data-centers being built.”

From Barron's • Apr. 15, 2026

Prioritizing the application of AI where it matters most and constant adoption is what will make a difference, he adds.

From The Wall Street Journal • Apr. 15, 2026

This constant is tied to the quantum of conductance, a fundamental quantity that describes how electrons move at the smallest scales.

From Science Daily • Apr. 15, 2026

Pfeiffer: It’s so funny, I was just talking to a woman today about that — once you become a mother, it’s like a constant state of grief.

From Los Angeles Times • Apr. 15, 2026

A constant companion, he had seen all of Washington’s wartime defeats, disasters, and disappointments.

From "In the Shadow of Liberty" by Kenneth C. Davis

Vocabulary lists containing constant

The Vocabulary.com Top 1000

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Jim Burke's Academic Vocabulary List

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Pi Day Vocabulary

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