immaturebody

noun
UK /ˌɪməˈtjʊə ˈbɒdi/
US /ˌɪməˈtʃʊr ˈbɑːdi/

A body that has not finished growing up yet.

The puppy has an immature body and will grow bigger soon.


OTHER MEANINGS

2. A body that is not fully formed or mature.

The insect's immature body changes as it grows.

3. A body that acts or looks younger than its age.

His immature body made him look like a kid.

4. A body that is not yet ready for adult tasks.

The immature body of the seedling cannot bear fruit yet.