im·ma·ture
adjective/ˌɪməˈtjʊə(r)/
/ˌɪməˈtʃʊr/, /ˌɪməˈtʊr/
- behaving in a way that is not sensible and is typical of people who are much younger
（行为）不成熟的，不够老练的，幼稚的 - immature behaviour
不成熟的行为
Wordfinder- adolescent
- immature
- mixed up
- naive
- puberty
- rebellious
- sulky
- tearaway
- teenager
- young
Extra ExamplesTopics Life stagesb2- Although she was older than her husband, she was emotionally quite immature.
尽管她比丈夫大，在情绪方面却不很成熟。 - He displays very immature behaviour for a boy of 16, running about the classroom and yelling.
对于一个 16 岁的男孩来说，他表现出非常不成熟的行为，在教室里跑来跑去，大喊大叫。 - Oh, don't be so immature.
哦，别这么幼稚。
Oxford Collocations Dictionaryverbs- be
- seem
- sound
- …
- extremely
- fairly
- very
- …
- immature behaviour
- not fully developed or grown
未长成的；发育未全的 - immature plants
未长成的植物 - The immature birds have shorter tails and brown, speckled plumage.
发育未全的鸟尾巴较短，羽毛呈褐色，有斑点。
Oxford Collocations Dictionaryverbs- be
- seem
- sound
- …
- extremely
- fairly
- very
- …
- immature plants
Word Originmid 16th cent. (in the sense ‘premature’, referring to death): from Latin immaturus ‘untimely, unripe’, from in- ‘not’ + maturus ‘ripe’.