ponderous

adj.

[1]	weighty , heavy , lumbering , unwieldy , heavy , massive , huge , big , large , awkward , clumsy , cumbersome/cumbrous
[2]	dull , tedious , laboured , laborious , tiresome , turgid , boring , dreary , pedestrian , stilted , windy , inflated , long-winded , wordy , verbose , prolix , elephantine , pompous , grandiloquent , overdone