at haphazard, at intervals, at irregular intervals, at random, brokenly, by catches, by chance, by fits, by jerks, by snatches, capriciously, carelessly, chaotically, choppily, desultorily, disconnectedly, discontinuously, eccentrically, erratically, every which way, fitfully, haltingly, haphazardly, helter-skelter, higgledy-piggledy, hit or miss, impulsively, in snatches, in spots, in the rough, inconsistently, inconstantly, indiscriminately, infrequently, intermittently, jaggedly, jerkily, lurchingly, nonuniformly, off and on, on, patchily, promiscuously, raggedly, randomly, rough, roughly, sloppily, spasmodically, sporadically, spottily, uncertainly, uncommonly, unequally, unevenly, unmethodically, unpredictably, unrhythmically, unsteadily, unsystematically, ununiformly, variably, whimsically, wobblingly