unsinkable

adj

"unsinkable" is a 10-letter English headword indexed on PlainSpell.

The verdict

“unsinkable” is uncommon English (frequency #72,008 among 1,433 “U” headwords), classed as an adjective. The kind of spelling people second-guess.

#72,008
frequency rank, English
1,433
“U” headwords

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

Corpus desk

Index EN-unsinkable · unsinkable · English

unsinkable · rank #72,008 · 0 variants · 0 confusables

  • FREQ-RARE #72,008
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH unseeded

Nearest frequency peer: unseeded (-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 “unsinkable”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for unsinkable
PropertyValue
Headwordunsinkable
LanguageEnglish
Part of speechAdjective
Letters10
Frequency rank#72,008
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unsinkable” 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).unsinkablefalls in this rarity band:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “unseeded” (#72,007), “untranslated” (#72,009), “unreality” (#72,006). Among 1,433 “U” headwords, “unsinkable” is #72,008. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

unsinkable is uncommon English at frequency #72,008 among 1,433 “U” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 2 senses are on record.

unsinkable doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable English rules. This entry stands alone in our confusable dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From un- + sink + -able. The correct English form is unsinkable, spelled U-N-S-I-N-K-A-B-L-E.

Definition

  1. 1
    That cannot be sunk.
  2. 2
    That cannot be overcome or defeated.

Recorded use

Wiktionary examples

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

  1. Any true Grecophile will understand when I say that the unsinkable condom and the smell of shit which precede the moment of illumination make it more exciting when it happens.
  2. It was the kind of place with a neon martini glass for a name and an unsinkable turd floating in the toilet.

Etymology

From un- + sink + -able.

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 "unsinkable"?
"unsinkable" is spelled U-N-S-I-N-K-A-B-L-E.
What does "unsinkable" mean?
As an adjective, "unsinkable" means: That cannot be sunk.
What is the origin of the word "unsinkable"?
From un- + sink + -able. 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 "unsinkable", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list