Subluminal

Word Type

Adjective

The word "subluminal" can be used as a adjective.

Word Relationships

Derived From

Related Terms

FTL luminal subsonic superluminal transluminal

Related Terms

ftl light luminal slower than light speed subsonic superluminal transluminal

Synonym Network

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