Preternatural:
Beyond what is normal or natural.
‘autumn had arrived with preternatural speed’ [Oxford English Dictionaries]
Noted in an article about a 14 year old running for governor of Vermont, “This 14-year-old is running for governor before he can even vote,” Kayla Epstein, WaPo:
Sonneborn thinks he can do it [be elected Governor of Vermont]. “My campaign transcends age,” he said. He possesses a preternatural self-assurance that’s not uncommon among politicians, but certainly is among teenagers who typically navigate the cutthroat politics of high school, not state government.