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unflappable

/ʌnˈflæpəbəl/adjective

unflappable is spelled U-N-F-L-A-P-P-A-B-L-E: 11 letters and 4 syllables. It appears about once in every 9 million words in written English, the 87,317th most frequent word form (wordfreq, 2021 data). As an adjective, unflappable means “Remaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily” (English Wiktionary, September 2026).

How many letters and syllables are in unflappable?

Letters11: U-N-F-L-A-P-P-A-B-L-E
Syllables4 (from its American pronunciation)
In writingabout once in every 9 million words; the 87,317th most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is unflappable?

Unflappable appears about once in every 9 million words in written English, the 87,317th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce unflappable?

  • /ʌnˈflæpəbəl/

Unflappable has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-au-unflappable.ogg, Wikimedia Commons (author and licence on each file's page).

Forms of unflappable

  • more unflappable comparative
  • most unflappable superlative

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does unflappable mean?

The meanings the English Wiktionary records, quoted as written there (source below).

adjective

  1. 1

    Remaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Unflappable in Spanish, French, German and Portuguese

In the sense remaining composed and level-headed at all times:

LanguageWords
Frenchimperturbable
Germanunerschütterlich
Spanishimperturbable

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does unflappable come from?

From un- + flap (“to upset, stir”) + -able.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What to look up after unflappable