C2 adjective /ˌsɒfəˈmɒrɪk/
sophomoric
अपरिपक्व
Meaning
showing immaturity and overconfidence, like a sophomore
Example
His sophomoric behavior embarrassed his friends.
उसका अपरिपक्व व्यवहार उसके दोस्तों को शर्मिंदा कर रहा था।