reverberant

adjective2

1. •
   Tending to reverberate.

   • His snoring was reverberant.
2. •
   (rare) Turned up sigmoidally, with the end pointing outward; reboundant.

   • A Lion rampant regardant, the tail reverberant or beaten back, or reboundant, as having beaten it to his back, and it hath rebounded again from thence. — 1688