unflappable

adjective

un·​flap·​pa·​ble ˌən-ˈfla-pə-bəl How to pronounce unflappable (audio)
: marked by assurance and self-control
unflappability noun
unflappably adverb

Examples of unflappable in a Sentence

He has a reputation for being unflappable. the unflappable teacher never even blinked when the wall map came crashing down
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Cade Smith remains an unflappable cyborg now tasked with the ninth inning, and Hunter Gaddis has submitted solid numbers in a setup role. Zack Meisel, New York Times, 20 Aug. 2025 Scheffler wasn’t unflappable on the back nine, though. Bennett Conlin, Baltimore Sun, 17 Aug. 2025 Many people do not know when LLMs are lying to them, which is unsurprising given that the chatbots are very convincing fabulists, serving up slop with unflappable confidence to their unsuspecting audience. Yair Rosenberg, The Atlantic, 15 Aug. 2025 Each appears to be unflappable; capable of remaining calm and collected in adversity. Bernie Pleskoff, Forbes.com, 1 May 2025 See All Example Sentences for unflappable

Word History

Etymology

un- entry 1 + flap entry 1 (state of excitement) + -able

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of unflappable was in 1954

Browse Nearby Words

Cite this Entry

“Unflappable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unflappable. Accessed 26 Aug. 2025.

Kids Definition

unflappable

adjective
un·​flap·​pa·​ble ˌən-ˈflap-ə-bəl How to pronounce unflappable (audio)
: not easily upset or panicked : unusually calm

More from Merriam-Webster on unflappable

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