Seldom

наречие редко, нечасто, изредка Например: He seldom gives interviews. — Он редко даёт интервью. Синоним(ы): rarely, infrequently

Большой англо-русский словарь

Seldom

I. adverb Etymology: Middle English, from Old English seldan; akin to Old High German seltan seldom in few instances; rarely, infrequently II. adjective rare, infrequent

Merriam-Webster's Collegiate Dictionary