Cumbersome

complesso

(hard, difficult, demanding to handle)

difficile

(hard, difficult, demanding to handle)

difficile da usare

(not easily managed or handled; awkward)

farraginoso

(hard, difficult, demanding to handle)

gravoso

(inert, lumbering, slow in movement)

ingombrante

(burdensome or hindering, as if a weight or drag; vexatious; cumbrous)

macchinoso

(not easily managed or handled; awkward)