submature
Submature is an adjective used to describe a state that is not fully mature; it denotes an intermediate developmental stage or condition that lies below full maturity. The term is used in various disciplines—such as biology, horticulture, medicine, and materials science—to indicate that something has begun or reached a significant degree of development yet has not attained the complete, final form.
In biology and medicine, submature can refer to organisms, tissues, or cells that are halfway toward maturity,
The term is not universally standardized; its precise meaning depends on the field and the criteria used