# antiparallel

> English word · Adjective

## Definitions
1. (of vectors) Parallel but in opposite directions.
2. (of vectors) Parallel but in opposite directions.

## Etymology
From anti- + parallel.

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