Synonyms of diurnal in English:

diurnal


See definition of diurnal

adjective

1‘the patient's mood is determined by diurnal events’

SYNONYMS
daily, everyday, day-to-day, quotidian
occurring every day, occurring each day
technical circadian

2‘flight demands good eyesight, so birds tend to be diurnal’

SYNONYMS
active during the day, non-nocturnal
daytime