ungainly in WordNet English dictionary

1. difficult to handle or manage especially because of shape
   "an awkward bundle to carry"; "a load of bunglesome paraphernalia"; "clumsy wooden shoes"; "the cello, a rather ungainly instrument for a girl"
   awkward  bunglesome  clumsy  ungainly 
   
2. lacking grace in movement or posture
   "a gawky lad with long ungainly legs"; "clumsy fingers"; "what an ungainly creature a giraffe is"; "heaved his unwieldy figure out of his chair"
   gawky  clumsy  clunky  ungainly  unwieldy