Đồng nghĩa của happening at intervals

recurrent periodic recurring continual cyclical frequent habitual intermittent regular repeated repetitive reiterative chronic continued cyclic on-and-off perennial periodical seasonal spasmodic sporadic alternate chain continuing isochronal isochronous odd persistent reoccurring repeating rolling constant perpetual routine ceaseless occasional usual incessant infrequent steady ingrained unabating continuous inveterate ineradicable deep-rooted deep-seated incurable numerous rhythmic daily sustained confirmed non-stop fitful iterative lasting long-standing discontinuous interrupted enduring settled lifelong inborn ever-present long-lived fixed inbred tenacious stubborn obstinate unyielding rooted unmitigated broken epochal serial episodic protracted on and off persisting abiding irregular erratic relentless unremitting unrelenting endless shifting punctuated unsteady discontinuing checked rhythmical arrested metrical iterant customary aperiodic hit-or-miss spotty stop-and-go never-ending every other oft repeated episodical here and there now and then eternal by bits and pieces choppy patchy obsessive compulsive many casual catchy prevalent successive countless scattered iterated prolonged isolated long-lasting common everyday profuse reiterated established every so often quotidian incorrigible lingering in fits and starts on-again-off-again at fixed intervals monthly returning occurring often very many a great many every once in a while oft-repeated interminable on-again, off-again long-drawn-out circular looping commonplace slow dragging serious severe remaining patterned unending acute dangerous like clockwork returning back spun-out drawn-out haunting uneven alarming extreme dire grave typical universal convulsive jerky prevailing uncertain desultory spurtive twitching shaky changeable recursive in bits and pieces happening at regular intervals autumn spring summer winter intervallic orbital annual weekly fluctuating yearly hourly centennial predictable natural obsessional driven once-a-month scheduled prearranged on certain occasions at various times extensive rampant wonted rife irresistible impulsive uncontrollable day-to-day mundane monotonous besetting familiar dyed-in-the-wool hardened random manifold several disconnected thick various fragmentary addicted bred-in-the-bone hooked pathological lots of millions of loads of a good many heaps of masses of quite a lot of dozens of hundreds of thousands of quite a few alternating by habit stop-go on again and off again inconsistent inconstant variable unstable capricious unsettled unsystematic volatile haphazard varying wavering scarce changing uncommon rare seldom rambling unmethodical unreliable disjointed unpredictable mercurial vacillating unusual disrupted ever-changing exceptional unfrequent aimless few scattershot semioccasional wandering unequal fickle temperamental bitty fluid off and on oscillating changeful paroxysmal disturbed up and down undependable mobile flickery skittish unconnected sparse incoherent unaccustomed jumpy limited disordered nonuniform scant incidental muddled entropic scanty indiscriminate disorganized sometime restless inchoate unorganized incohesive unwonted few and far between mutable fractal loose unorganised whimsical turbulent piecemeal movable protean stray disorganised unfixed non-linear out of the common floating chameleonic kaleidoscopic swaying iffy waffling irresolute flighty fluctuant variational full of ups and downs blowing hot and cold incomplete violent broken up troubled flickering herky-jerky uncustomary unlikely aberrated aberrant abnormal atypical anomalous impermanent gaping freelance outsourced outside outré rarefied abrupt sudden versatile everchanging surprising unconventional uncharacteristic unexpected chameleon-like twitchy part-time chaotic sketchy unorthodox unique vicissitudinous catch-as-catch-can unthinking slapdash arbitrary offhand labile unheard of uncontrolled transitional variant irresponsible vagrant revocable commutative transformable agitated reversible indecisive out of the ordinary chance unfocused orderless especial unequable exclusive special particular specific shifty slippery peaky undulating shaking rough bumpy tremulous not habitual eccentric up-and-down yo-yo designless partial meager unpunctual helter-skelter without purpose unconsidered purposeless bipolar bouncy jolting dynamic off-and-on meagre non-periodic disunited confused two-faced thin on the ground moving deviating partially fractional gradual intermittently fitfully fragmented like gold dust once in a blue moon jumbled as scarce as hens' teeth altering roving juddering shuddering flakey vagarious developing flaky growing divided separated scrappy garbled dislocated displaced mixed up without unity split directionless by fits and starts by degrees stage by stage little by little step by step at intervals always changing far-out unattached out-to-lunch spacey spaced-out irrational out-of-it cool fuzzy disorderly more … than one can shake a stick at

happening at regular intervals happening at the same time happening in happening now happening on happening repeatedly happening again happening happenin' happened with happened upon happened together