unquenchable

adj

"unquenchable" is a 12-letter English headword indexed on PlainSpell.

The verdict

“unquenchable” is uncommon English (frequency #66,376 among 1,433 “U” headwords), classed as an adjective. The kind of spelling people second-guess.

#66,376
frequency rank, English
1,433
“U” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - That cannot be quenched.

Corpus desk

Index EN-unquenchable · unquenchable · English

unquenchable · rank #66,376 · 0 variants · 0 confusables

  • FREQ-RARE #66,376
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH unlearned

Nearest frequency peer: unlearned (-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 “unquenchable”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for unquenchable
PropertyValue
Headwordunquenchable
LanguageEnglish
Part of speechAdjective
Letters12
Frequency rank#66,376
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unquenchable” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).unquenchablefalls 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: “unlearned” (#66,375), “unshaven” (#66,377), “unheated” (#66,374). Among 1,433 “U” headwords, “unquenchable” is #66,376. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

unquenchable is uncommon English at frequency #66,376 among 1,433 “U” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "That cannot be quenched.".

unquenchable doesn't appear in our generated misspelling index, typically a sign the spelling maps closely to how the word sounds. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From un- + quenchable. The correct English form is unquenchable, spelled U-N-Q-U-E-N-C-H-A-B-L-E.

Definition

  1. 1
    That cannot be quenched.

Recorded use

Wiktionary examples

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

  1. After a twelve-mile run in the hot sun, his thirst felt unquenchable.
  2. Alas! thus ever does the weakness of our nature rebuke its strength, and genius is brought to the level—ay, below the level—of common humanity, by an unquenchable thirst for its applause.

Etymology

From un- + quenchable.

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

How do you spell "unquenchable"?
"unquenchable" is spelled U-N-Q-U-E-N-C-H-A-B-L-E.
What does "unquenchable" mean?
As an adjective, "unquenchable" means: That cannot be quenched.
What is the origin of the word "unquenchable"?
From un- + quenchable. 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 "unquenchable", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list