# optimal vs optimally

> English confusable word pair

## The two words

### optimal
*adjective · IPA /ˈɒptɪməl/ · frequency rank #7,824*
The best, most favourable or desirable, especially under some restriction.

### optimally
*adverb · frequency rank #38,080*
In an optimal manner.

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