OCCASIONALLY, from time to time, (every) now and then/again, every so often, on occasion, at times, sometimes, off and on, at intervals, periodically, sporadically, intermittently.
2192; headword
OCCASIONALLY, from time to time, (every) now and then/again, every so often, on occasion, at times, sometimes, off and on, at intervals, periodically, sporadically, intermittently.
2192; headword
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012