Synonyms for Circadian:

• adj.

  •daily (adjective)
  • cyclic,
  • day by day,
  • most often,
  • common,
  • from day to day,
  • regular,
  • day-to-day,
  • commonplace,
  • routine,
  • often,
  • per diem,
  • everyday,
  • once daily,
  • once a day,
  • constantly,
  • day after day,
  • regularly,
  • ordinary,
  • periodic,
  • quotidian.
  •pert (adjective)
  • circadian.

• Other synonyms:

  •
  • bimonthly,
  • triennial,
  • hourly,
  • monthly,
  • annually,
  • half-hourly,
  • semiweekly.
  •
  • biennial.
  •
  • alternate.
  •Other relevant words:
  • accustomed,
  • normal,
  • general,
  • correct,
  • accurate,
  • proper,
  • inveterate,
  • constant,
  • conventional,
  • unit of time,
  • habitual,
  • time unit,
  • usual,
  • chronic,
  • cyclical,
  • intermittent,
  • natural,
  • formal.

Antonyms for Circadian:

• adj.

  • daily
    extraordinary, nightly, rare, variable, uncommon, infrequent, irregular, different, nocturnal, abnormal, at night, unusual.