prematurely

That which is cast or brought forth prematurely

an abnormal state in which development has stopped prematurely n

Result looks a bizarre shade of orange and ages the skin prematurely. > Jason "What's that big white ring among the wrinkles on the side of your neck?" > Shaz "Oh shit! I forgot to take my giant hoop earrings off when I was getting my permatan."

the development of male secondary sexual characteristics in a female (or prematurely in a young boy)