Subluminous

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Of lower luminosity
  2. 2
    Describing a star that is fainter than main-sequence stars of the same colour

Etymology

From sub- + luminous.

Related phrases

main sequence

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