# unflappable

> English word · Adjective · IPA /ʌnˈflæpəbəl/ · frequency rank #87,943

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

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

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/unflappable