1. resembling or having the characteristics of a vault; arched or curved like a vault
Usage: literary; architectural

Examples

• The cathedral’s vaulty ceiling stretched high above the congregation.
• She admired the vaulty architecture of the ancient Roman ruins.
• The cave had a naturally vaulty formation that echoed their voices.
• The bridge’s vaulty design allowed ships to pass underneath.
• The vaulty passageway led to the castle’s main hall.