non-functional
"non-functional" is a 13-letter English headword indexed on PlainSpell.
The verdict
“non-functional” is outside the top-ranked English vocabulary, used as an adjective - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 14
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Alternative form of nonfunctional.
| Property | Value |
|---|---|
| Headword | non-functional |
| Language | English |
| Part of speech | Adjective |
| Letters | 14 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “non-functional” sits in English frequency
Spelling & Dictionary Insight
The English entry for non-functional is 14 letters long, classified as an adjective. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Alternative form of nonfunctional.".
The misspelling generator found no plausible variants for non-functional, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.
This headword's origin isn't recorded in our source data, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is non-functional, spelled N-O-N---F-U-N-C-T-I-O-N-A-L.
Definition
- 1Alternative form of nonfunctional.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “non-functional”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is N-O-N---F-U-N-C-T-I-O-N-A-L - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
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.