Synonyms for diurnal

Adjective

1. diurnal (vs. nocturnal), daytime

usage: belonging to or active during the day; "diurnal animals are active during the day"; "diurnal flowers are open during the day and closed at night"

2. diurnal, cyclic (vs. noncyclic), cyclical

usage: having a daily cycle or occurring every day; "diurnal rhythms"; "diurnal rotation of the heavens"; "the diurnal slumber of bats"