adj. 25B6; adjective INTERMITTENT, fitful, irregular, sporadic, erratic, occasional, infrequent, scattered, patchy, isolated, periodic, periodical, on and off.
SPASMODIC
Meaning of SPASMODIC in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012