unflappable
/ʌnˈflæpəbəl/
"unflappable" is a 11-letter English headword indexed on PlainSpell.
The verdict
“unflappable” is uncommon English (frequency #87,943 among 1,433 “U” headwords), classed as an adjective. The kind of spelling people second-guess.
- #87,943
- frequency rank, English
- 1,433
- “U” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Remaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily.
Corpus desk
Index EN-unflappable · unflappable · English
unflappable · rank #87,943 · 0 variants · 0 confusables
- FREQ-RARE #87,943
- LEN-MEGA 11 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 1,433
- PHOTO-FINISH unevenness
Nearest frequency peer: unevenness (-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.
Frequency neighbourhood for “unflappable”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- UNCLOS
UNCLOS
12,061 corpus weight
- unevenness
unevenness
12,059 corpus weight
- unflappable
unflappable
12,058 corpus weight
- unflinching…
unflinchingly
12,057 corpus weight
- unordered
unordered
12,055 corpus weight
- unsentiment…
unsentimental
12,054 corpus weight
What this shows Bars show where “unflappable” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | unflappable |
| Language | English |
| Part of speech | Adjective |
| IPA | /ʌnˈflæpəbəl/ |
| Letters | 11 |
| Frequency rank | #87,943 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “unflappable” sits in English frequency
Rare enough to double-check
unflappable is uncommon English at frequency #87,943 among 1,433 “U” headwords, classed as anadjective, transcribed /ʌnˈflæpəbəl/. Rarity is why readers land here mid-draft. Gloss: "Remaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily.".
unflappable has no tracked misspelling variants, since its letter pattern doesn't lend itself to common typo substitutions. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From un- + flap (“to upset, stir”) + -able. The correct English form is unflappable, spelled U-N-F-L-A-P-P-A-B-L-E.
Definition
- 1Remaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily.
Recorded use
Wiktionary examplesThese source excerpts show how unflappable appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The whole thing looked remarkably like an implacable force meeting an unflappable object.
It was for this reason that when Lord Hailsham first described Harold Macmillan as "unflappable'", it became an instant catchword, distancing the incoming Prime Minister from his predecessor
Etymology
From un- + flap (“to upset, stir”) + -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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "unflappable", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 11 letters (nearest by frequency rank).
What to do next
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- Usage frequency rank #87,943 among English headwords in this corpus. Corpus statistics
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Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.