She never matched them in terms of physical or emotional maturity.
Often do well in sports because of their physical maturity.
Not surprisingly, rank seems to have influenced the age at which physical maturity was reached.
Full physical maturity is attained between 25 and 30 years.
She was just on the verge of physical maturity, and rather pretty in her shy way.
A professional football player needs a certain level of physical maturity to be successful.
Small differences in height and start of physical maturity are seen.
Your people take twenty years to reach physical maturity; I've done it in four.
The young one, who at this stage was invariably female, reached physical maturity early and produced a child of its own.
To protect smaller boys, some leagues divide players according to their physical maturity.