diurnal

adj.

Definition

  1. daily; occurring in a day or every day
  2. active during the daytime rather than at night
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Synonym

  • constantly
  • periodic
  • routine

Antonym

  • abnormal
  • irregular
  • different

Sentences

  1. The waves are caused by diurnal tides.
  2. Waking up, showering, eating, and sleeping are all part of her diurnal routine.
Nocturnal, Diurnal | PBS KIDS