| sporadically(expression, adverb, time, continue, rare) |
| irregularly(adverb, variable, vacillating, intermittent, irregularly) |
| occasionally(expression, adverb, time, continue, rare) |
| periodically(expression, adverb, time, continue, late) |
| off and on(expression, idiom, adverb, time, rare) |
| erratically(adverb, irregularly, haphazardly, unequally) |
| fitfully(adjective, adverb, irregularly, haphazardly, erratically) |
| discontinuously |
| infrequently(adverb, variable, intermittent, occasionally, sporadically) |
| now and then(expression, adverb, time, rare, variable) |
| sometimes(expression, adverb, time, continue, rare) |
| brokenly |
| jerkily(adverb, irregularly) |
| unsystematically(adverb, irregularly) |
| inconstantly(adverb, variable, intermittent, uncertainly, infrequently) |
| now and again(expression, idiom, adverb, time, continue) |
| spasmodically |
| unevenly(adverb, irregularly) |
| variably(adverb, irregularly) |
| capriciously(adverb, irregularly) |