ungrammatical
"ungrammatical" is a 13-letter English headword indexed on PlainSpell.
The verdict
“ungrammatical” is an uncommon English word, ranked #95,559 in English word frequency and used as an adjective.
- #95,559
- frequency rank, English
- 13
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - In violation of one or more of the rules and conventions of a language as defined by the grammar, resulting in unacceptable or incorrect usage.
| Property | Value |
|---|---|
| Headword | ungrammatical |
| Language | English |
| Part of speech | Adjective |
| Letters | 13 |
| Frequency rank | #95,559 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “ungrammatical” sits in English frequency
Spelling & Dictionary Insight
The English entry for ungrammatical is 13 letters long, classified as an adjective. Corpus data places it at rank #95,559 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "In violation of one or more of the rules and conventions of a language as defined by the grammar, resulting in unacceptable or incorrect usage.".
Our edit-distance generator produced no likely misspellings for ungrammatical, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From un- + grammatical. The correct English form is ungrammatical, spelled U-N-G-R-A-M-M-A-T-I-C-A-L.
Definition
- 1In violation of one or more of the rules and conventions of a language as defined by the grammar, resulting in unacceptable or incorrect usage.
Etymology
From un- + grammatical.
This word in other languages
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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Using “ungrammatical”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is U-N-G-R-A-M-M-A-T-I-C-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.