1. (a.) Very heavy; weighty; bulky; as, a ponderous shield; a ponderous load\; the ponderous elephant.

2. (a.) Important; momentous; forcible.

3. (a.) Heavy; dull; wanting; lightless or spirit; as, a ponderous style; a ponderous joke.

Latinate all thumbs arid awkward barren big blah blank bloodless blunderheaded blundering bombastic boorish boring bulky bumbling bungling butterfingered careless characterless clownish clumsy clumsy-fisted cold colorless contrary cramped crosswise cumbersome cumbrous dead dismal draggy drearisome dreary dry dryasdust dull dusty effete elephantine empty etiolated fade fat fingers all thumbs flat forced formal fumbling gauche gawkish gawky graceless grandiloquent guinde halting ham-fisted ham-handed heavy heavy-handed heavyweight hefty ho-hum hollow huge hulking hulky impractical inane inconvenient inelegant inexcitable inflated inkhorn insipid jejune labored laborious large leaden left-hand left-handed lifeless long-winded loutish low-spirited lubberly lumbering lumpish lumpy maladroit massive massy oafish overdone overweight pale pallid pedestrian perverse plodding pointless poky pompous prolix sesquipedalian sloppy slow solemn spiritless sterile stiff stilted stodgy stuffy superficial tasteless tedious tiresome turgid uncouth ungainly ungraceful unhandy unlively unmanageable unwieldy vapid verbose weighty windy wooden wordy