Select the most appropriate ANTONYM of the word ‘Naive’ from the given sentence.

After years of working in politics, she had become cynical and jaded, convinced that all politicians were corrupt and that the system was rigged against the people.

To find the most appropriate antonym of the word ‘Naive’, let's analyze its meaning and the context of the given sentence.

1. Understanding the target word:
The word ‘Naive’ describes someone who is innocent, trusting, gullible, or lacks experience, wisdom, or judgment. A naive person tends to believe that people are inherently good and honest.

2. Analyzing the context of the sentence:
"After years of working in politics, she had become cynical and jaded, convinced that all politicians were corrupt and that the system was rigged against the people."
Here, the subject has changed over time due to her experience in politics. She went from being potentially trusting or naive to someone who believes that people are motivated purely by self-interest and that everyone is corrupt.

3. Evaluating the options:
• Cynical: Believing that people are motivated purely by self-interest; distrustful of human sincerity or integrity. This is the direct opposite of being naive (trusting and gullible).
• Jaded: Tired, bored, or lacking enthusiasm, typically after having had too much of something.
• Corrupt: Showing a willingness to act dishonestly in return for money or personal gain.
• Convinced: Completely certain about something.

Therefore, the most appropriate antonym of ‘Naive’ from the sentence is ‘Cynical’.