# cool as a cucumber

> English word · Adjective

## Definitions
1. Calm and composed even in difficult or frustrating situations; self-possessed.

## Etymology
First use appears c. 1722 in a translation of Robinson Crusoe. See cite below.

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