# dimensionless

> English word · Adjective · frequency rank #65,053

## Definitions
1. Lacking dimensions.
2. Of a physical constant: lacking units.

## Etymology
From dimension + -less.

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