yòu​zhì​bìng

infantilism

幼稚病 yòu​zhì​bìng
infantilism
A psychological condition or medical disorder characterized by the persistence of infantile characteristics into adulthood
infantile disorder
A figurative term for immaturity or a lack of depth and foresight in one's thinking and actions, especially regarding political matters

Frequency

Written text
0.099 per million

Sources

Frequency data
BCC Corpus (BLCU)