What is another word for constant?

It depends which constant you mean. In the sense “unvarying in nature”, the synonyms are changeless, invariant, unvarying. Across all 5 senses there are 11 distinct synonyms, and they are not interchangeable with each other — this page lists them under the sense each one belongs to.

What is the opposite of constant?

The recorded antonym is inconstant. Opposites are sense-specific too: this page shows which meaning each one is the opposite of, because a word rarely has a single opposite that holds for all of its senses.

Why are the synonyms for constant split into groups?

Because constant carries 5 recorded senses and each has its own set of substitutes. A single flat list would put words from unrelated meanings side by side with nothing to tell them apart, which is exactly how a writer picks the wrong one. The grouping comes from WordNet's synsets, not from an editorial judgement of ours.

Where do the synonyms for constant come from?

From Princeton University's WordNet, a lexical database maintained by lexicographers since 1985. A synonym here means a word form that shares a synset with this word — a set of forms interchangeable in one recorded context. Nothing on this page is generated by a language model.

Synonyms and antonyms

constant

constant/ˈkɑnstənt/

adjectivenounCommon

constant has 11 distinct synonyms spread across 3 of its 5 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is inconstant.

11
Distinct synonyms: 1
Antonym: 5 of 5
Senses with a relation

Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.

constant as an adjective

3 of 3 senses carry a relation

1.
unvarying in nature
“maintained a constant temperature”
Synonymschangeless invariant unvarying
2.
steadfast in purpose or devotion or affection
“a man constant in adherence to his ideals”
SynonymsNo synonym recorded for this sense.
Antonymsinconstant
3.
uninterrupted in time and indefinitely long continuing
“the ceaseless thunder of surf”
Synonymsceaseless incessant never-ending perpetual unceasing unremitting

constant as a noun

2 of 2 senses carry a relation

1.
a quantity that does not vary
Synonymsconstant quantity invariable
Related
Broaderquantity
Narrowerparameter
2.
a number representing a quantity assumed to have a fixed value in a specified mathematical context
“the velocity of light is a constant”
SynonymsNo synonym recorded for this sense.
Related
Broadernumber
NarrowerAvogadro's number Boltzmann's constant coefficient cosmological constant equilibrium constant gas constant gravitational constant Hubble's constant ionic charge factor of proportionality

Questions about constant

What is another word for constant?: It depends which constant you mean. In the sense “unvarying in nature”, the synonyms are changeless, invariant, unvarying. Across all 5 senses there are 11 distinct synonyms, and they are not interchangeable with each other — this page lists them under the sense each one belongs to.
What is the opposite of constant?: The recorded antonym is inconstant. Opposites are sense-specific too: this page shows which meaning each one is the opposite of, because a word rarely has a single opposite that holds for all of its senses.
Why are the synonyms for constant split into groups?: Because constant carries 5 recorded senses and each has its own set of substitutes. A single flat list would put words from unrelated meanings side by side with nothing to tell them apart, which is exactly how a writer picks the wrong one. The grouping comes from WordNet's synsets, not from an editorial judgement of ours.
Where do the synonyms for constant come from?: From Princeton University's WordNet, a lexical database maintained by lexicographers since 1985. A synonym here means a word form that shares a synset with this word — a set of forms interchangeable in one recorded context. Nothing on this page is generated by a language model.

Other views of constant

Synonyms, antonyms and the broader and narrower relations for constant come from Princeton University’s WordNet. Full sources and licences.

Loading page

Synonyms and antonyms

constant

constant/ˈkɑnstənt/

adjectivenounCommon

11
Distinct synonyms: 1
Antonym: 5 of 5
Senses with a relation

Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.

constant as an adjective

3 of 3 senses carry a relation

1.
unvarying in nature
“maintained a constant temperature”
Synonymschangeless invariant unvarying
2.
steadfast in purpose or devotion or affection
“a man constant in adherence to his ideals”
SynonymsNo synonym recorded for this sense.
Antonymsinconstant
3.
uninterrupted in time and indefinitely long continuing
“the ceaseless thunder of surf”
Synonymsceaseless incessant never-ending perpetual unceasing unremitting

constant as a noun

2 of 2 senses carry a relation

1.
a quantity that does not vary
Synonymsconstant quantity invariable
Related
Broaderquantity
Narrowerparameter
2.
a number representing a quantity assumed to have a fixed value in a specified mathematical context
“the velocity of light is a constant”
SynonymsNo synonym recorded for this sense.
Related
Broadernumber
NarrowerAvogadro's number Boltzmann's constant coefficient cosmological constant equilibrium constant gas constant gravitational constant Hubble's constant ionic charge factor of proportionality

Questions about constant

What is another word for constant?: It depends which constant you mean. In the sense “unvarying in nature”, the synonyms are changeless, invariant, unvarying. Across all 5 senses there are 11 distinct synonyms, and they are not interchangeable with each other — this page lists them under the sense each one belongs to.
What is the opposite of constant?: The recorded antonym is inconstant. Opposites are sense-specific too: this page shows which meaning each one is the opposite of, because a word rarely has a single opposite that holds for all of its senses.
Why are the synonyms for constant split into groups?: Because constant carries 5 recorded senses and each has its own set of substitutes. A single flat list would put words from unrelated meanings side by side with nothing to tell them apart, which is exactly how a writer picks the wrong one. The grouping comes from WordNet's synsets, not from an editorial judgement of ours.
Where do the synonyms for constant come from?: From Princeton University's WordNet, a lexical database maintained by lexicographers since 1985. A synonym here means a word form that shares a synset with this word — a set of forms interchangeable in one recorded context. Nothing on this page is generated by a language model.

Other views of constant

Synonyms, antonyms and the broader and narrower relations for constant come from Princeton University’s WordNet. Full sources and licences.

Tools

Jump to

Images & video

PDF & writing

Calculate & convert

Health & fitness

AI, code & work

Learn & play

Tool directories

Search

Jump to

Explore AltFTool

Help

Theme

constant

constant as an adjective

constant as a noun

Questions about constant

Other views of constant

Tools

Jump to

Images & video

PDF & writing

Calculate & convert

Health & fitness

AI, code & work

Learn & play

Tool directories

Search

Jump to

Explore AltFTool

Help

Theme

constant

constant as an adjective

constant as a noun

Questions about constant

Other views of constant