metastable
adjective, noun
metastable is spelled M-E-T-A-S-T-A-B-L-E: 10 letters. It appears about once in every 7 million words in written English, the 78,613th most frequent word form (wordfreq, 2021 data). As an adjective, metastable means “Of or pertaining to a physical or chemical state that is relatively long-lived, but may decay to a lower energy state when slightly perturbed or…” (English Wiktionary, September 2026).
How many letters and syllables are in metastable?
| Letters | 10: M-E-T-A-S-T-A-B-L-E |
|---|---|
| In writing | about once in every 7 million words; the 78,613th most frequent word form |
| Wrong spellings searched | none measured in search |
| Same letters |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is metastable?
Metastable appears about once in every 7 million words in written English, the 78,613th 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).
What rhymes with metastable?
No other word on PlainSpell ends in the same sounds as metastable.
Spelled with the same letters in another order: stablemate.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of metastable
- more metastable comparative
- most metastable superlative
- metastables plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does metastable mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Of or pertaining to a physical or chemical state that is relatively long-lived, but may decay to a lower energy state when slightly perturbed or through a quantum transition.
noun
- 1
A particle, etc. in the metastable state.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Metastable in Spanish, French, German and Portuguese
In the sense of a long-lived unstable state:
| Language | Words |
|---|---|
| French | métastable |
| German | metastabil |
| Portuguese | metaestável |
| Spanish | metaestable |
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 metastable come from?
From meta- + stable.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).