insipid:

lacking in qualities that interest, stimulate or challenge

insipid:

lacking in qualities that interest, stimulate or challenge

(Adjective)

Example Sentences:

Ramayana:  Not one verse of the Ramayana is insipid; every verse has artistic merit and devotional potency, and some are simply overflowing with sweetness.

Mahabharata:  Although several sages urged Duryodhana to return the Pandava’s kingdom to them, he found their talks so insipid that he hardly paid any attention to them.

Bhagavad-gita:  The more we develop a taste for hearing about Krishna, the more mundane entertainment feels insipid.