unbuildable

adj

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

The verdict

“unbuildable” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Not buildable; that cannot be built.

Corpus desk

Index EN-unbuildable · unbuildable · English

unbuildable · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "U" thin
  • PHOTO-UNK Peer pending

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.

Key facts for unbuildable
PropertyValue
Headwordunbuildable
LanguageEnglish
Part of speechAdjective
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unbuildable” in English

unbuildableranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

unbuildable is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Not buildable; that cannot be built.".

Zero misspellings are on record for unbuildable in our index, a sign its spelling follows regular English conventions. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From un- + buildable. The correct English form is unbuildable, spelled U-N-B-U-I-L-D-A-B-L-E.

Definition

  1. 1
    Not buildable; that cannot be built.

Recorded use

Wiktionary example

These source excerpts show how unbuildable appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Because unusual facades catch the public’s eye and generate much of the popular interest in contemporary architecture, clients often urge an architect to build something that looks unbuildable.

Etymology

From un- + buildable.

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

How do you spell "unbuildable"?
"unbuildable" is spelled U-N-B-U-I-L-D-A-B-L-E.
What does "unbuildable" mean?
As an adjective, "unbuildable" means: Not buildable; that cannot be built.
What is the origin of the word "unbuildable"?
From un- + buildable. 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.

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

Source: FrequencyWords open word-frequency list