Example sentences:

Ramayana: When Ravana made comments that were demeaning to Rama, Hanuman decided that enough was enough.  

Mahabharata: When Duryodhana insulted Vidura in the presence of Dhritarashtra, Vidura felt that more demeaning than Duryodhana’s words was Dhritarashatra’s silence. 

Bhagavad-gita: The notion that life has no meaning is demeaning not just to our intelligence but also to our very existence.