Answer: In the sentence provided, the word "precocious" means "gifted".
Explanation: The word "precocious" is an adjective used to describe someone as having an exceptional talent that has been developed earlier than expected. In other words, it is used to refer to someone who shows an incredible mental development at an early age. Therefore, "precocious" means "gifted". The other options ("experimental", "boastful", and "beyond") do not provide the meaning of "precocious".