whippersnapper:

unimportant or inexperienced person who is overconfident and cheeky

whippersnapper:

unimportant or inexperienced person who is overconfident and cheeky

(Noun)

Example Sentences:

Ramayana:  Ravana initially considered Angada to be a whippersnapper, but the young monkey’s show of strength left the demon king stunned.

Mahabharata:  Right from his childhood, Duryodhana was a whippersnapper whose behaviour often annoyed courtiers and citizens alike. 

Bhagavad-gita:  Even if whippersnappers adopt spirituality externally, their lack of humility will obstruct them in internalising their spirituality.