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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.

“I think the constant uncertainty, particularly when it’s something as important as ‘How am I going to feed my family?

From Slate • Apr. 19, 2026

The nuclear plant itself needs constant monitoring and maintenance.

From BBC • Apr. 18, 2026

Because cities normally produce a constant level of ground shaking, even a brief slowdown becomes easy to detect.

From Science Daily • Apr. 18, 2026

Since Walter Mondale, vice presidents have come to view their role as that of top adviser to the president—senior troubleshooter, constant surrogate, head of a few special “portfolios.”

From The Wall Street Journal • Apr. 16, 2026

The towering formations had been serrated by the constant desert wind and looked like massive temple spires.

From "The Many Assassinations of Samir, the Seller of Dreams" by Daniel Nayeri

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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