# rigorous vs rigorously

> English confusable word pair

## The two words

### rigorous
*adjective · IPA /ˈɹɪɡəɹəs/ · frequency rank #11,597*
Showing, causing, or favoring rigour/rigor; scrupulously accurate or strict; thorough.

### rigorously
*adverb · frequency rank #29,067*
In a rigorous manner.

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