clunky

adjective2

1. •
   (informal) Ungainly; awkward; inelegant; cumbersome.

   • That tomboy's clothing is rather clunky.
2. •
   Being or making a clunk sound.

   • You might find yourself listening to the sound your car door makes when it shuts. Is it a cheap tinny sound or a strong clunky sound like the VW? — 2012