conceit
Definition
Excessive pride in oneself; an overly favorable opinion of one's own abilities.
हिन्दी स्वयं के प्रति अत्यधिक अहंकार; अपनी क्षमताओं के प्रति बहुत अधिक सकारात्मक राय।
Example
"His conceit made it difficult for others to work with him."