Correct Answer: ripened

Solution : The correct choice is the second option.

Explanation:

The word youthful refers to qualities associated with youth, vigour, or inexperience. The second option, ripened , serves as the appropriate antonym, suggesting a state of development or maturity.

The meanings of the other options are as follows:

• Unformed : This term implies a lack of shape or structure.
• Childlike : This term conveys innocence or qualities associated with children.
• Raw : This term means unprocessed or in an early stage.