According to your definition: Modesty means the quality or state of being unassuming or moderate in the estimation of one's ability.
And, Now we require to define it in our way, and in easy language.....So, We can say that !!
[tex] \Large{ \boxed{ \bf{ \color{pink}{In \: easy \: words}}}}[/tex]
❍ Modesty - It is the quality of not being much proud or confident about ourselves or on our abilities. Let's see some examples to capture properly:
━━━━━━━━━━━━━━━━━━━━