ˈpänd(ə)rəs adjective
Etymology: Middle English, from Middle French pondereux, from Latin ponderosus, from ponder-, pondus weight + -osus -ous — more at pendant
1. : of very great weight
a ponderous stone
: extremely or oppressively heavy
a ponderous burden
2. : unwieldy or clumsy because of weight and size
a ponderous weapon
ponderous furniture
3. : oppressively or unpleasantly dull
a ponderous book
: uninspired , pedestrian
ponderous comment
4. : slow and laborious
a ponderous yawn
Synonyms: see heavy