polyunsaturated
"polyunsaturated" is a 15-letter English headword indexed on PlainSpell.
The verdict
“polyunsaturated” is uncommon English (frequency #55,654 among 4,417 “P” headwords), classed as an adjective. The kind of spelling people second-guess.
- #55,654
- frequency rank, English
- 4,417
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of or relating to long chain organic compounds that have multiple double bonds; polyunsaturated fatty acids are essential to human nutrition.
Corpus desk
Index EN-polyunsaturated · polyunsaturated · English
polyunsaturated · rank #55,654 · 0 variants · 0 confusables
- FREQ-RARE #55,654
- LEN-MEGA 15 letters
- VOW-7 7 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 4,417
- PHOTO-FINISH Pondicherry
Nearest frequency peer: Pondicherry (+1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Frequency neighbourhood for “polyunsaturated”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- Poehler
Poehler
44,350 corpus weight
- policyholder
policyholder
44,349 corpus weight
- polyunsatur…
polyunsaturated
44,347 corpus weight
- Pondicherry
Pondicherry
44,346 corpus weight
- popularize
popularize
44,345 corpus weight
- Poroshenko
Poroshenko
44,344 corpus weight
What this shows Bars show where “polyunsaturated” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | polyunsaturated |
| Language | English |
| Part of speech | Adjective |
| Letters | 15 |
| Frequency rank | #55,654 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “polyunsaturated” sits in English frequency
Rare enough to double-check
polyunsaturated is uncommon English at frequency #55,654 among 4,417 “P” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 2 senses are on record.
Our edit-distance generator produced no likely misspellings for polyunsaturated, since its letter pattern doesn't lend itself to common typo substitutions. Our dataset records no confusable match here, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From poly- + unsaturated. The correct English form is polyunsaturated, spelled P-O-L-Y-U-N-S-A-T-U-R-A-T-E-D.
Definition
- 1Of or relating to long chain organic compounds that have multiple double bonds; polyunsaturated fatty acids are essential to human nutrition.
- 2Having a chemical structure that does not easily change into cholesterol (a substance containing a lot of fat thought to be an important cause of heart disease).
Etymology
From poly- + unsaturated.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "polyunsaturated", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 15 letters (nearest by frequency rank).
What to do next
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Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.