pon ‧ der ‧ ous /ˈpɒnd ə rəs $ ˈpɑːn-/ BrE AmE adjective
[ Date: 1300-1400 ; Language: French ; Origin: pondéreux , from Latin ponderosus , from pondus ; ⇨ ↑ ponder ]
1 . slow or awkward because of being very big and heavy:
an elephant’s ponderous walk
2 . boring, very serious, and seeming to progress very slowly:
a ponderous and difficult book
The system, though ponderous, works.
—ponderously adverb
—ponderousness noun [uncountable]