undersigned

adj

By · According to Wiktionary data (CC BY-SA) ·

"undersigned" is a 11-letter English headword indexed on PlainSpell.

The verdict

“undersigned” is uncommon English (frequency #55,835 among 1,433 “U” headwords), classed as an adjective. The kind of spelling people second-guess.

#55,835
frequency rank, English
1,433
“U” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Having signatures at the end or bottom.

Corpus desk

Index EN-undersigned · undersigned · English

undersigned · rank #55,835 · 0 variants · 0 confusables

  • FREQ-RARE #55,835
  • LEN-MEGA 11 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH underused

Nearest frequency peer: underused (+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.

Long-tail ranks near “undersigned”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “undersigned” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for undersigned
PropertyValue
Headwordundersigned
LanguageEnglish
Part of speechAdjective
Letters11
Frequency rank#55,835
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “undersigned” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).undersignedfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “underused” (#55,836), “UCAS” (#55,833), “UNEP” (#55,837). Among 1,433 “U” headwords, “undersigned” is #55,835. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

undersigned is uncommon English at frequency #55,835 among 1,433 “U” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 2 senses are on record.

undersigned doesn't appear in our generated misspelling index, since its letter sequence doesn't invite the usual edit-distance slips. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From under- + signed. The correct English form is undersigned, spelled U-N-D-E-R-S-I-G-N-E-D.

Definition

  1. 1
    Having signatures at the end or bottom.
  2. 2
    Having signed at the end of a document.

Etymology

From under- + signed.

This word in other languages

soussigné(Français)

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 "undersigned"?
"undersigned" is spelled U-N-D-E-R-S-I-G-N-E-D.
What does "undersigned" mean?
As an adjective, "undersigned" means: Having signatures at the end or bottom.
What is the origin of the word "undersigned"?
From under- + signed. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "undersigned", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 11 letters (nearest by frequency rank).

untraceable#55,839Weatherford#55,852telekinesis#55,796afterschool#55,893

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list