Achluophobia

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The fear of darkness. uncountable

    "If you have a severe case of achluophobia (fear of the dark), for instance, you may want to wait at the mouth of the cave."

Synonyms

All synonyms
nyctophobiascotophobia

Example

More examples

"If you have a severe case of achluophobia (fear of the dark), for instance, you may want to wait at the mouth of the cave."

Etymology

From Ancient Greek ἀχλύς (akhlús, “darkness”) and -phobia.

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