Example Sentences:

Ramayana:  As a child, Hanuman was so mischievous and obstreperous that the sages decided to curse him so that he would forget his powers, thereby reducing his pranks.

Mahabharata:  Although Bhima was powerful from birth, he was never obstreperous – the austerities of living in the forest had made him disciplined.

Bhagavad-gita:  The mind is so obstreperous that controlling it is more difficult than controlling the raging wind.