invariant
adjective, noun
invariant is spelled I-N-V-A-R-I-A-N-T: 9 letters and 4 syllables. It appears 1.1 times per million words in written English, the 27,820th most frequent word form (wordfreq, 2021 data). As an adjective, invariant means “Not varying; constant” (English Wiktionary, September 2026).
How many letters and syllables are in invariant?
| Letters | 9: I-N-V-A-R-I-A-N-T |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | 1.1 times per million words; the 27,820th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is invariant?
Invariant appears 1.1 times per million words in written English, the 27,820th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce invariant?
- US
- US
Invariant has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-invariant.wav, LL-Q1860_(eng)-Qwertygiy-invariant.wav, Wikimedia Commons (author and licence on each file's page).
Forms of invariant
- more invariant comparative
- most invariant superlative
- invariants plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does invariant mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Not varying; constant.
- 2
Unaffected by a specified operation, especially by a transformation.
- 3
Neither covariant nor contravariant.
noun
- 1
An invariant quantity, function etc.
- 2
Ellipsis of class invariant.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Invariant in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| German | unveränderlich , invariant |
| Portuguese | invariante, constante |
| French | invariant |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does invariant come from?
From in- + variant.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).