immature

• adj. 不成熟的；未成熟的；粗糙的

im-,不，非，mature,成熟的。

immature (adj.)

1540s, "untimely, premature," from Latin immaturus "untimely, unripe," from assimilated form of in- "not, opposite of" (see in- (1)) + maturus (see mature (v.)). In 16c., usually in reference to early death; modern sense of "not fully developed" first recorded 1640s. In reference to mentalities or behaviors not considered age-appropriate, from 1920.

1. Because of the immunity of the immature insects, it'simportant to spray regularly.

由于幼虫对药物有免疫力，因此必须经常喷药。

来自柯林斯例句

2. He was a young lad, very green, very immature.

他还是个毛头小子，幼稚得很，一点都不成熟。

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3. He implied that we were emotionally immature.

他暗示我们情感上还不成熟。

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4. His speech is immature, his vocabulary limited.

他说话很幼稚，使用的词汇有限。

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5. She is emotionally immature.

她情感上不成熟。

来自柯林斯例句