recurrent

seasonal

Recurring at fixed intervals

• annualOccurring every year
• quarterlyFour times annually
• monthlyOccurring each lunar cycle

weekly · daily · cyclical · interval · regular · calendar · biennial · scheduled · intermittent · episodic

loop

Curve closing on itself

• cycleRepeating sequence of events
• rotationTurning on an axis
• revolvingTurning around a center

circular · repeating · iterative · feedback · spiral · return · renewal · rebirth · regeneration · repetition

routine

Regular sequence of actions

• customaryDone by convention
• regularOccurring at fixed intervals
• consistentNot varying or contradicting

ingrained · automatic · accustomed · established · predictable · habitual · familiar · standard · typical · expected

beat

Rhythmic pulse or strike

• pulseArterial blood throb
• cadenceRhythmic pulse or pattern
• oscillationRepeated back-and-forth movement

wave · ebb · flow · pulsing · throbbing · undulating · pulsation · heartbeat · breathing · tidal

persistent

Continuing despite difficulty

• ongoingIn progress now
• long-termLasting extended period
• continualRepeatedly occurring over time

unrelenting · lasting · constant · sustained · protracted · enduring · perpetual · incessant · unremitting · ceaseless

setback

Reverse in progress

• remissionTemporary disease absence
• flare-upSudden recurrence of symptoms
• episodeSerialized content unit

relapsing · return · reappearance · resurgence · regression · backslide · reemergence · outbreak · bout · attack

• intermittentintermittent, sporadic, periodic, on-off, discontinuous
• habit wordsdaily, regular, routine, habitual, chronic
• seizuresseizure, epileptic, convulsion, fit, attack
• neural networksneural network, neural networks, hidden layers, backpropagation, layers
• sensationstaste, touch, smell, sound, pain
• breast cancerbreast cancer, mastectomy, mammogram, lumpectomy, mammography