# rationality vs rationally

> English confusable word pair

## The two words

### rationality
*noun · frequency rank #25,544*
The quality or state of being rational; due exercise of reason; reasonableness.

### rationally
*adverb · frequency rank #26,220*
In a rational manner

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