synonyms
  • definitions

circadian

[ sur-key-dee-uh n, -kad-ee-, sur-kuh-dee-uh n ]SEE DEFINITION OF circadian

Synonyms for circadian

  • constantly
  • day-to-day
  • everyday
  • often
  • periodic
  • regular
  • regularly
  • routine
  • common
  • commonplace
  • ordinary
  • cyclic
  • day after day
  • day by day
  • diurnal
  • from day to day
  • once a day
  • once daily
  • per diem
  • quotidian
MOST RELEVANT

Antonyms for circadian

  • abnormal
  • different
  • irregular
  • uncommon
  • unusual
  • variable
  • extraordinary
  • infrequent
  • rare
  • at night
  • nightly
  • nocturnal
MOST RELEVANT
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD ORIGIN

coined 1959 from Latin circa "about" (see circa) + diem, accusative singular of dies "day" (see diurnal). The original use is in circadian rhythm.

MORE RELATED WORDS FOR CIRCADIAN

daily

adjectiveoccurring every day; during the day
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.