undeclared
"undeclared" is a 10-letter English headword indexed on PlainSpell.
The verdict
“undeclared” has 15 generated spelling variants in the English index at frequency #43,445. The variants make it a useful spelling check.
- #43,445
- frequency rank, English
- 23,789
- “U” headwords
- 15
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Not declared
| Property | Value |
|---|---|
| Headword | undeclared |
| Language | English |
| Part of speech | Adjective |
| Letters | 10 |
| Frequency rank | #43,445 |
| Misspellings tracked | 15 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “undeclared” sits in English frequency
A misspelling magnet
The generator records 15 spelling variants around undeclared, anadjective. Corpus frequency is #43,445 among 23,789 “U” headwords. Dominant gloss: "Not declared".
Our generated misspelling index lists 15 likely wrong-spelling variants for undeclared, with forms such as "nudeclared", "udneclared", and "undcelared". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. This entry stands alone in our confusable dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From un- + declared. The correct English form is undeclared, spelled U-N-D-E-C-L-A-R-E-D.
Definition
- 1Not declared
Etymology
From un- + declared.
Common misspellings
Also misspelled as:
- nudeclared
- udneclared
- undcelared
- unddeclared
- undecalred
- undecclared
- undeclaerd
- undeclarde
- undeclaredd
- undeclarred
- undecllared
- undeclraed
- undelcared
- unedclared
- unndeclared
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of undeclared - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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
How do you spell "undeclared"?
What does "undeclared" mean?
What are common misspellings of "undeclared"?
What is the origin of the word "undeclared"?
Is PlainSpell free to use?
Using “undeclared”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is U-N-D-E-C-L-A-R-E-D - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Same frequency band
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.