unshakable

adj

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

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

The verdict

“unshakable” is uncommon English (frequency #57,802 among 1,433 “U” headwords), classed as an adjective. The kind of spelling people second-guess.

#57,802
frequency rank, English
1,433
“U” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Not able to be shaken; firm, solid

Corpus desk

Index EN-unshakable · unshakable · English

unshakable · rank #57,802 · 0 variants · 0 confusables

  • FREQ-RARE #57,802
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH unravelling

Nearest frequency peer: unravelling (-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 “unshakable”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for unshakable
PropertyValue
Headwordunshakable
LanguageEnglish
Part of speechAdjective
Letters10
Frequency rank#57,802
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unshakable” 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).unshakablefalls 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: “unravelling” (#57,801), “unmasking” (#57,800), “undertow” (#57,799). Among 1,433 “U” headwords, “unshakable” is #57,802. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

unshakable is uncommon English at frequency #57,802 among 1,433 “U” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 3 senses are on record.

The misspelling generator found no plausible variants for unshakable, which points to an orthography that plays by predictable English rules. 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- + shake + -able. The correct English form is unshakable, spelled U-N-S-H-A-K-A-B-L-E.

Definition

  1. 1
    Not able to be shaken; firm, solid
  2. 2
    resolute, unfaltering, unwavering
  3. 3
    Having no errors or loopholes; unassailable

Etymology

From un- + shake + -able.

This word in other languages

inquebrantable(Español)inébranlable(Français)unerschütterlich(Deutsch)inabalável(Português)

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 "unshakable"?
"unshakable" is spelled U-N-S-H-A-K-A-B-L-E.
What does "unshakable" mean?
As an adjective, "unshakable" means: Not able to be shaken; firm, solid
What is the origin of the word "unshakable"?
From un- + shake + -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 "unshakable", not the corpus desk frequency band.

Same letter count

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

Waterville#57,813trilateral#57,783threadbare#57,770temporally#57,764

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

Source: FrequencyWords open word-frequency list