I'm looking for words to define grade levels from babies to adults.
According to what I've found on Baidu, the basic division is:

婴儿 - 0 to 3 years old
幼儿 - 3 to 6 years old

启蒙 - 7 to 10 years old
逆反 - 11 to 14 years old
成长 - 15 to 17 years old

成年 - 18+ years old

But according to the dictionary, 启蒙 and 逆反 mean "to initiate" and "rebellious behavior", which doesn't seem to relate to age at all.

Are there better words to add up to 级 to define these grades?

Thank you

  • 启蒙 and 逆反 are stages in life(just like puberty 青春期), so in turn it should be 启蒙时期 and 逆反时期, which happens at the relative age. – 超酷爆帅型男 Jun 24 '16 at 16:36
  • There no strict definition for the age period of any of your examples in everyday usage. A lot of rights and obligations from the law take effect when a person becomes 18, so 成年 is usually 18+. – fefe Jun 28 '16 at 2:14

chinese characters related to age, there're three main sources.

the first one is 論語, chapter 為政



而立 - 30+

不惑 - 40+

知天命 - 50+

耳順 - 60+

the second one is 釋名, which was written in 漢 dynasty

in 卷三﹒釋長幼 (page 57-60):


"人始生曰嬰兒﹒胸前曰嬰"  - newborn, before breast (breastfeeding)

"兒始能行曰孺"  - started to walk

"七年曰悼"  - 7+

"毀齒曰齔"  - losing baby teeth ( 9-12?)


"十五曰童"  - 15+

"二十曰弱"  - 20+

"三十曰壯"  - 30+

"四十曰強"  - 40+

"五十曰艾"  - 50+

"六十曰耆"  - 60+

"七十曰耄"  - 70+

"八十曰耋"  - 80+

"九十曰鮐背", "或曰黃耇", "或曰胡耇", "或曰凍梨", "或曰齯" 鮐背, 黃耇, 胡耇, 凍梨, - 90+


"百年曰期頤" 期頤 - 100+

the third one is 說文解字, also of 漢 dynasty, which was published earlier than 釋名. some explanations were different from 釋名, e.g. 耄 is 90+.

btw, talking about age, remember to consider "虛歲", or "虛齡"


there're several more age related characters / words, have fun :)

"启蒙"" refers to the Age of Enlightenment, and "叛逆" refers to the Age of rebellion in this case.

Here is the other words define the grade:


青春期 - 18 to 28 years old

成熟期 - 29 to 40 years old


壮实期 - 41 to 48 years old

稳健期 - 49 to 55 years old

调整期 - 56 to 65 years old


初老期 - 66 to 72 years old

中老期 - 73 to 84 years old

年老期 - 85 years old and older

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