Crepuscular

//kɹɪˈpʌs.kjə.lɚ// adj

adj ·Uncommon ·Advanced level

Definitions

Adjective
  1. 1
    Of or resembling twilight; dim.
  2. 2
    Active at or around dusk, dawn or twilight.

    "That's why cats are crepuscular — most active at dawn and dusk — because mice and rats forage for food during these hours when fewer of their natural enemies are around."

Adjective
  1. 1
    like twilight; dim wordnet

Synonyms

All synonyms
twilightishblackcaliginouscrepusculinedarkdiurnal

Example

More examples

"That's why cats are crepuscular — most active at dawn and dusk — because mice and rats forage for food during these hours when fewer of their natural enemies are around."

Etymology

Learned borrowing from Latin crepusculum + -ar.

Related phrases

crepuscular ray

More for "crepuscular"

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