| in a few cases(expression, irregularity, rareness, infrequency) |
| every now and then(expression, irregularity, rareness, infrequency) |
| few times(expression, irregularity, rareness, infrequency) |
| from time to time(expression, irregularity, rareness, infrequency) |
| hardly ever(expression, irregularity, rareness, infrequency) |
| infrequently(adverb, irregularity, rareness, infrequency) |
| irregularly(adverb, irregularity, rareness, infrequency) |
| not often(expression, irregularity, rareness, infrequency) |
| not very often(expression, irregularity, rareness, infrequency) |
| occasionally(adverb, irregularity, rareness, infrequency) |
| on and off(expression, irregularity, rareness, infrequency) |
| once in a blue moon(expression, irregularity, rareness, infrequency) |
| once in a while(expression, irregularity, rareness, infrequency) |
| rarely(adverb, irregularity, rareness, infrequency) |
| scarcely ever(expression, irregularity, rareness, infrequency) |
| seldom(adverb, irregularity, rareness, infrequency) |
| semioccasionally(adverb, irregularity, rareness, infrequency) |
| sometimes(adverb, irregularity, rareness, infrequency) |
| sporadically(adverb, irregularity, rareness, infrequency) |
| unoften(adverb, irregularity, rareness, infrequency) |