Unnova

noun

noun ·Rare ·Advanced level

Definitions

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

Synonyms

All synonyms
failed supernovafailed supernovakilonova

Etymology

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

Related phrases

black hole

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.