# triangle-free

> English word · Adjective

## Definitions
1. Of an undirected graph in which no three vertices form a triangle of edges.

## Etymology
From triangle + -free.

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