unflappable
/ʌnˈflæpəbəl/
"unflappable" is a 11-letter English headword indexed on PlainSpell.
The verdict
“unflappable” is an uncommon English word, ranked #87,943 in English word frequency and used as an adjective.
- #87,943
- frequency rank, English
- 11
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Remaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily.
| 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
Spelling & Dictionary Insight
The English entry for unflappable is 11 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ʌnˈflæpəbəl/. Corpus data places it at rank #87,943 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "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.
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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Using “unflappable”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is U-N-F-L-A-P-P-A-B-L-E - every other letter order is a misspelling in standard orthography.
- Say it as /ʌnˈflæpəbəl/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
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.