# unnova

> English word · Noun

## Definitions
1. The collapse of a star which cannot explode in a supernova.

## Etymology
From un- + nova. From being similar to a supernova-process collapse, without the bright novalike outburst.

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