| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | happening at regular intervals |
| Synonyms: | circular, patterned, periodic, recurrent, recurring, regular, repeated, repetitive, seasonal |
| Main Entry: | periodic |
| Part of Speech: | adjective |
| Definition: | at fixed intervals |
| Synonyms: | alternate, annual, at various times, centennial, cyclic, cyclical, daily, epochal, every once in a while, every so often, fluctuating, hourly, infrequent, intermittent, isochronal, isochronous, monthly, occasional, on certain occasions, on-again-off-again, orbital, perennial, periodical, recurrent, recurring, regular, repeated, rhythmic, routine, seasonal, serial, spasmodic, sporadic, weekly, yearly |
| Notes: | periodic means happening or recurring at regular intervals; sporadic means occurring singly or occasionally or in scattered instances |
| Antonyms: | constant, continual, irregular, lasting, permanent, sporadic, variable |
| Main Entry: | recurrent |
| Part of Speech: | adjective |
| Definition: | repeating |
| Synonyms: | alternate, chain, continued, cyclical, frequent, habitual, intermittent, isochronal, isochronous, periodic, periodical, recurring, regular, reoccurring, repeated, repetitive, rolling |
| Antonyms: | halted, infrequent, permanent, prevented, stopped |
| Main Entry: | cyclic |
| Part of Speech: | adjective |
| Definition: | recurrent |
| Synonyms: | cyclical, like clockwork, periodic, periodical, recurring, repeating |
| Main Entry: | isochronal |
| Part of Speech: | adjective |
| Definition: | recurrent |
| Synonyms: | alternate, chain, continued, cyclic, cyclical, frequent, habitual, intermittent, isochronous, like clockwork, periodic, periodical, recurring, regular, reoccurring, repeated, repetitive, rolling |
| Main Entry: | isochronous |
| Part of Speech: | adjective |
| Definition: | recurrent |
| Synonyms: | alternate, chain, continued, cyclic, cyclical, frequent, habitual, intermittent, isochronal, like clockwork, periodic, periodical, recurring, regular, reoccurring, repeated, repetitive, rolling |
| Main Entry: | "on-again, off-again" |
| Part of Speech: | adjective |
| Definition: | intermittent |
| Synonyms: | alternate, arrested, broken, by bits and pieces, checked, cyclic, cyclical, discontinuing, discontinuous, epochal, every other, fitful, here and there, hit-or-miss, infrequent, interrupted, isochronal, isochronous, iterant, iterative, metrical, now and then, occasional, on and off, periodic, periodical, punctuated, recurrent, recurring, rhythmic, rhythmical, seasonal, serial, shifting, spasmodic, sporadic, stop-and-go |