Meaning of the word unflappable in English

What does unflappable mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

unflappable

US /ʌnˈflæp.ə.bəl/
UK /ʌnˈflæp.ə.bəl/

Adjective

having or showing calm in a crisis

Example:
Despite the chaos, the pilot remained completely unflappable.
Her unflappable demeanor helped calm everyone during the emergency.