The Collaborative International Dictionary of English v.0.48:

Resound \Re*sound"\ (r?*zound"), v. i. [imp. & p. p.
   Resounded; p. pr. & vb. n. Resounding.] [OE. resounen,
   OF. resoner, F. r['e]sonner, from L. resonare; pref. re- re-
   + sonare to sound, sonus sound. See Sound to make a noise.]
   1. To sound loudly; as, his voice resounded far.
      [1913 Webster]

   2. To be filled with sound; to ring; as, the woods resound
      with song.
      [1913 Webster]

   3. To be echoed; to be sent back, as sound. "Common fame . .
      . resounds back to them again." --South.
      [1913 Webster]

   4. To be mentioned much and loudly. --Milton.
      [1913 Webster]

   5. To echo or reverberate; to be resonant; as, the earth
      resounded with his praise.
      [1913 Webster]

WordNet (r) 3.0 (2006):

resounding
    adj 1: characterized by resonance; "a resonant voice"; "hear the
           rolling thunder" [syn: resonant, resonating,
           resounding, reverberating, reverberative]

Moby Thesaurus II by Grady Ward, 1.0:

60 Moby Thesaurus words for "resounding":
   assertive, boom, booming, consonant, deafening, ear-piercing,
   ear-rending, ear-splitting, earthshaking, echo, echoic, echoing,
   forceful, forte, fortissimo, full, growl, growling, grumble,
   grumbling, insistent, lingering, loud, loud-sounding, loudish,
   orotund, pealing, persistent, piercing, plangent, reboant,
   reboation, rebound, rebounding, reecho, reechoing, repercussive,
   resound, reverberant, reverberating, reverberation, reverberatory,
   ringing, rotund, round, rumble, rumbling, sonorous, sounding,
   stentoraphonic, stentorian, stentorious, thunder, thundering,
   thunderous, tonitruant, tonitruous, undamped, vibrant,
   window-rattling