Being in an early period of growth or development

• youthful

  1. Characteristic of young people.
  2. Young; possessing youth; not yet old or mature
  3. (Geology) Young:

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  1. Characteristic of young people.
  2. Young; possessing youth; not yet old or mature
  3. (Geology) Young:

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• young

  1. Lacking experience or practice; immature; raw; ignorant; green
  2. Lacking experience; immature:
  3. Newly begun or formed; not advanced:

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  1. Lacking experience or practice; immature; raw; ignorant; green
  2. Lacking experience; immature:
  3. Newly begun or formed; not advanced:

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• juvenile

  1. Relating to or characteristic of a young animal that has not reached sexual maturity:
  2. Of, characteristic of, or suitable for children or young persons
  3. Young or youthful

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  1. Relating to or characteristic of a young animal that has not reached sexual maturity:
  2. Of, characteristic of, or suitable for children or young persons
  3. Young or youthful

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• infant

  1. Newly begun or formed:
  2. Of or for infants or infancy
  3. Intended for infants or young children.

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  1. Newly begun or formed:
  2. Of or for infants or infancy
  3. Intended for infants or young children.

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• green

  1. Beneficial to the environment or less harmful to the environment than others:
  2. Vigorous or robust:
  3. Not grown up; young:

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  1. Beneficial to the environment or less harmful to the environment than others:
  2. Vigorous or robust:
  3. Not grown up; young:

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Of or characteristic of a child, especially in immaturity

• puerile

  1. Silly or trivial, esp. in a childish way or as a result of immaturity
  2. Immature, especially in being silly or trivial; childish.
  3. (Archaic) Belonging to childhood; juvenile.

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  1. Silly or trivial, esp. in a childish way or as a result of immaturity
  2. Immature, especially in being silly or trivial; childish.
  3. (Archaic) Belonging to childhood; juvenile.

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• juvenile

  1. Of, characteristic of, or suitable for children or young persons
  2. Immature or childish
  3. Marked by immaturity; childish:

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  1. Of, characteristic of, or suitable for children or young persons
  2. Immature or childish
  3. Marked by immaturity; childish:

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• infantile

  1. Of or relating to infants or infancy.
  2. Displaying or suggesting a lack of maturity; childish:
  3. Childish; immature.

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  1. Of or relating to infants or infancy.
  2. Displaying or suggesting a lack of maturity; childish:
  3. Childish; immature.

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• childish

  1. Of, like, or characteristic of a child
  2. Of or suitable for a child.
  3. Marked by or indicating a lack of maturity; puerile:

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  1. Of, like, or characteristic of a child
  2. Of or suitable for a child.
  3. Marked by or indicating a lack of maturity; puerile:

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• babyish

  1. Like a baby; childish; puerile; simple.

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  1. Like a baby; childish; puerile; simple.

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