yòu​zhì HSK7

childish

幼稚 yòu​zhì
childish adjective
immature, naive, or puerile in behavior or thinking

His ideas are too naive and don't match reality at all.

young adjective
young or in the early stages of development

This little tree is still in its early growth stage and needs careful tending.

Frequency

Movie subtitles
8.91 per million appears in 4% of films
Written text
11.2 per million

Details

HSK 2.0
Level 6
HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT