To have a hidden flaw or weakness in someone's character that is not immediately apparent.

किसी के चरित्र में छिपी हुई कमजोरी या दोष होना जो तुरंत स्पष्ट नहीं होता।

English Usage: Despite his impressive achievements, the leader was found to have feet of clay when his dishonesty was revealed.

Hindi Usage: अपनी प्रभावशाली उपलब्धियों के बावजूद, नेता के कमजोर आधार का पता चला जब उसकी बेईमानी उजागर हुई।