infrequent

• adj. 罕见的；稀少的；珍贵的；不频发的

in-,不，非，frequent,频繁的。

infrequent (adj.)

1530s, from Latin infrequentem (nominative infrequens) "occurring seldom, unusual; not crowded, absent," from in- "not" (see in- (1)) + frequens (see frequent). Related: Infrequently.

1. her infrequent visits home

她少有的探望家人

来自《权威词典》

2. Barriers between nations are reared by slow and infrequent communication.

国与国之间的隔阂是由沟通缓慢而又太少形成的.

来自《简明英汉词典》

3. Disturbances are relatively infrequent in British prisons.

相对来说,英国监狱不常发生骚乱.

来自《简明英汉词典》

4. Some words are too infrequent to be worthy of inclusion in the dictionary.

一些单词的使用频率太低,没有必要收入词典.

来自《简明英汉词典》

5. Chances to see Ashley alone were all too infrequent these days.

最近,要想与艾希礼单独会面可不怎么容易呀.

来自飘（部分）