Đồng nghĩa của not frequent

isolated infrequent odd rare scattered sporadic episodic irregular occasional erratic incidental intermittent random scarce sparse unfrequent not habitual few and far between casual periodic spasmodic fitful uncommon aperiodic discontinuous episodical seldom unusual unsteady periodical exceptional spotty choppy semioccasional desultory catchy few limited scanty patchy chance unwonted on and off unaccustomed in fits and starts hit-or-miss scant seasonal unlikely accidental uneven unexpected recurring out of the common recurrent rarefied sometime fragmentary stray scattershot unique unheard of on-again-off-again out of the ordinary in bits and pieces widespread discrete strewn uncustomary aberrated aberrant abnormal atypical anomalous outré exclusive particular especial specific special convulsive jerky unconventional surprising uncharacteristic uncertain spurtive twitching shaky changeable unorthodox off and on haphazard freak lone single arbitrary fortuitous fluky contingent part-time catch-as-catch-can helter-skelter unpredictable disconnected cyclical interrupted broken continual cyclic alternate shifting isochronal isochronous epochal rhythmic serial punctuated checked iterative rhythmical arrested metrical discontinuing iterant alternating on-and-off unthinkable light unimaginable attenuated singular subtile magnificent deficient flimsy outstanding recherche subtle standout towering inconceivable tenuous strange thin remarkable preeminent attenuate extraordinary short by bits and pieces stop-go stop-and-go here and there on again and off again every other now and then meager meagre thin on the ground like gold dust once in a blue moon as scarce as hens' teeth regular frequent repeated inconsistent inconstant habitual variable fluctuating repetitive unstable unsystematic disrupted varying unsettled capricious constant continued disturbed wavering changing unreliable rolling reoccurring chain disjointed unmethodical persistent perennial continuing steady volatile unequal rambling aimless like clockwork bitty reiterative entropic indiscriminate chronic intervallic impulsive fractal routine flickering disorganized non-stop disorganised non-linear perpetual daily every so often numerous at fixed intervals every once in a while occurring often incomplete on-again, off-again troubled broken up restless wandering repeating happening at intervals temporary gaping inchoate unorganized disordered unconnected incohesive muddled incoherent herky-jerky oft-repeated unorganised impermanent freelance outsourced outside oft repeated chaotic loose sketchy unthinking slapdash offhand unfocused orderless orbital annual weekly yearly monthly hourly centennial without purpose on certain occasions at various times nonuniform mutable customary commonplace fickle temperamental changeful mercurial partial eccentric quotidian everyday designless wayward unpunctual unconsidered purposeless fluid flickery unfixed labile skittish vacillating ever-changing up and down vagarious irresolute variational fluctuant flighty undependable off-and-on non-periodic partially fractional gradual intermittently fitfully waffling peaky not constant blowing hot and cold piecemeal incessant many familiar endless common countless profuse reiterated manifold eternal several by degrees at intervals successive lots of millions of loads of a good many heaps of a great many masses of quite a lot of thick very many iterated dozens of hundreds of thousands of quite a few various by fits and starts stage by stage little by little step by step

not fruitful not fully not fully developed not fully engaged not fully exploited not fun not frank not found in nature not found not forward not for the world not forthcoming