uncontrovertible

adj

"uncontrovertible" is a 16-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
16
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - incontrovertible

Corpus desk

Index EN-uncontrovertible · uncontrovertible · English

uncontrovertible · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 16 letters
  • VOW-6 6 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 uncontrovertible
PropertyValue
Headworduncontrovertible
LanguageEnglish
Part of speechAdjective
Letters16
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “uncontrovertible” in English

uncontrovertiblesits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

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

Rare enough to double-check

uncontrovertible is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "incontrovertible".

No generated misspelling entries exist for uncontrovertible in our index, typically a sign the spelling maps closely to how the word sounds. No close-neighbour confusable shows up for this headword in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From un- + controvertible. The correct English form is uncontrovertible, spelled U-N-C-O-N-T-R-O-V-E-R-T-I-B-L-E.

Definition

  1. 1
    incontrovertible

Recorded use

Wiktionary examples

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

  1. For when I recollect, singly, the particular positions upon which his opinion seems to be founded, I do not find them by any means uncontrovertible; some of them seem at best uncertain, and some evidently mistaken.
  2. Nothing that any German can ever say or write will efface from the memory of the world the uncontrovertible fact that your Chancellor officially admitted your country's guilt in this matter.

Etymology

From un- + controvertible.

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 "uncontrovertible"?
"uncontrovertible" is spelled U-N-C-O-N-T-R-O-V-E-R-T-I-B-L-E.
What does "uncontrovertible" mean?
As an adjective, "uncontrovertible" means: incontrovertible
What is the origin of the word "uncontrovertible"?
From un- + controvertible. 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