Infrequent

прилагательное 1) нечастый, редкий; нерегулярный, случайный Например: infrequent occurrence — редкий случай infrequent guest — нечастый гость Синоним(ы): occasional 2) нечастый, редкий (в пространственном отношении); расположенный на некотором расстоянии Например: infrequent oases in the desert — немногочисленные оазисы в пустыне

Большой англо-русский словарь

Infrequent

нечастый, редко встречающийся

Англо-русский научно-технический словарь

Infrequent

adjective Etymology: Latin infrequent-, infrequens, from in- + frequent-, frequens frequent 1. seldom happening or occurring; rare 2. placed or occurring at wide intervals in space or time Example: a slope scattered with infrequent pines Example: infrequent visitsinfrequently adverb Synonyms: infrequent, uncommon, scarce, rare, sporadic mean not common or abundant. infrequent implies occurrence at wide intervals in space or time Example: infrequent family visits. uncommon suggests a frequency below normal expectation Example: smallpox is now uncommon in many countries. scarce implies falling short of a standard or required abundance Example: jobs were scarce during the Depression. rare suggests extreme scarcity or infrequency and often implies consequent high value Example: rare first editions. sporadic implies occurrence in scattered instances or isolated outbursts Example: sporadic cases of influenza.

Merriam-Webster's Collegiate Dictionary