形けい成せい期き

noun

formative period; formative years

Refers to a developmental stage when something (e.g., a nation, personality, or skill) takes shape. Often used in historical, psychological, or educational contexts.

• この国くには形けい成せい期きに多おおくの困こん難なんを経けい験けんした。

  This country experienced many hardships during its formative period.

• 幼よう少しょう期きは人じん格かくの形けい成せい期きとして重じゅう要ようだ。

  Early childhood is important as a formative period for personality.