# clear as mud

> English word · Adjective

## Definitions
1. Unclear; difficult or impossible to understand or interpret.

## Etymology
Blend of clear as day + mud. Compare muddy (“unclear, blurry”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/clear-as-mud