infrequent 是一个形容词,意思是"不常发生的;稀少的;罕见的",用来描述某事发生的频率很低。
/ɪnˈfriːkwənt/
His visits to the countryside became infrequent after he moved to the city.
他搬到城市后,去乡下的次数变得很少了。
Despite infrequent opportunities to practice, she managed to maintain a remarkably high level of fluency in French.
尽管练习的机会不多,她依然保持了相当高的法语流利程度。
infrequent 源自拉丁语 infrequens,由前缀 in-(表示"不、非")和 frequens(意为"频繁的、常见的")组合而成。该词在16世纪经由拉丁语进入英语,字面意思就是"不频繁的"。frequent 本身来自拉丁语 frequens,原义为"拥挤的、众多的",后来引申为"经常发生的"。