noun
rebellious phase; rebellious age
Typically refers to a developmental stage, especially in children or adolescents, when they resist authority and assert independence. Often used in parenting and educational contexts.
うちの子は今、反抗期で、何を言っても反対する。
My child is in a rebellious phase right now and opposes everything I say.
反抗期の子どもとどう接すればいいか悩んでいる。
I'm struggling with how to deal with a child going through a rebellious phase.
思春期 is puberty/adolescence, a biological and emotional stage, while 反抗期 is a behavioral phase often overlapping with it.
Compound of 反抗 (rebellion, resistance) and 期 (period, phase). The term is a straightforward modern coinage reflecting a common developmental concept.