Modifies a noun

• applause: The news was greeted with thunderous applause from an audience.

• roar: Mixed in with the thunderous roar of our artillery we could also hear rifle fire.

• ovation: Its GOD who creates, GOD who delivers, GOD who heals, and God who is worthy of a thunderous ovation of praise!

• volley: A first ever fourth-round appearance had stirred the locals in this charming spa town more used to thundering hooves than thunderous volleys.

• cheer: The MC made the appropriate announcement to thunderous cheers from the near-capacity crowd.

• bass: Although I'm sure there were many political statement contained therein they were lost amid the massive guitar and thunderous bass.

Modifying Another Word

• sometimes: Brooding, sweeping, sometimes thunderous, occasionally quite odd, but always absolutely pop.