Childish, puerile, sophomoric, infantile , juvenile. All mean immature to some degree.
"im" is a prefix in the word "immature" which means "not" or "lacking." So, "im" in "immature" indicates that something is not fully developed or grown.
young, immature
The word that means immature tissue is "parenchyma." Parenchyma refers to the functional tissue in plants and animals that is involved in processes such as photosynthesis, storage, and support. In a broader context, "immature" tissue can also be referred to as "embryonic" or "undifferentiated" tissue, depending on the specific biological context.
immature
A 'kid' , when one means a 'child'. A 'kid' is an immature goat.
People were talking about how immature the boy was.
"Immature" is an adjective, the opposite of "mature."
ish.---Actually, -ish is a suffix, not a prefix. A prefix is the front part of a word. For instance, take the word immature. That means childish, and the prefix is im- which means not. So an immature person is not mature, but childish.If you want another suffix for child that makes the meaning the same, you can add -like. So a person can be childlike.
sophmoric means immature so sophmoric humor is immature humor
Immature can mean childish or stubborn. The immature boy did not want to tie his shoes, and then fell.
immature
You are immature.