WordWeb Online

1. Not clear and resonant; sounding as if striking with or against something relatively soft
   "thudding bullets";
   - dull

1. Make a dull sound
   "the knocker thudded against the front door";
   - thump
    
2. Strike with a dull sound
   "Bullets were thudding against the wall"
    
3. Make a noise typical of an engine lacking lubricants
   - crump, scrunch

See also: nonresonant, unreverberant

Type of: collide with, crackle, crunch, go, hit, impact, impinge on, run into, scranch [dialect], scraunch, sound, strike

Encyclopedia: Thud