Concept:
A synonym is a word that has the same or nearly the same meaning as another word. To identify the correct synonym, we must first understand the exact meaning of the given word and then compare it carefully with the meanings of the available options.
The word juvenile is generally used to describe a young person or something related to youth, childhood, or the early stage of life. It may also refer to characteristics commonly associated with young individuals.
Therefore, the correct synonym should convey the idea of youth, young age, or youthful qualities.
Step 1: Understanding the meaning of the word “juvenile”.
The word juvenile means:
• Young in age.
• Relating to children or adolescents.
• Characteristic of youth.
• Not yet fully mature.
Examples:
• The juvenile athlete showed great potential.
• The library has a separate juvenile section.
In both cases, the word is associated with young people or youthfulness.
Step 2: Analyzing each option carefully.
• mature
The word mature means fully developed physically, mentally, or emotionally.
This meaning is opposite to juvenile because maturity is associated with adulthood rather than youth.
Therefore, this option is incorrect.
• gentle
The word gentle means kind, mild, soft, or tender in nature.
This describes a personality trait and has no connection with age or youth.
Therefore, this option is incorrect.
• jubilant
The word jubilant means extremely happy, joyful, or triumphant.
This word refers to an emotional state and does not indicate youthfulness.
Therefore, this option is incorrect.
• youthful
The word youthful means young or having the qualities associated with young people.
This meaning closely matches the meaning of juvenile.
Therefore, this is the correct answer.
Step 3: Selecting the most appropriate synonym.
Both “juvenile” and “youthful” refer to young age and the characteristics associated with youth.
Hence, the best synonym is:
\[
\boxed{\text{youthful}}
\]