Pon″der‐ous (?), a. [L. ponderosus, from pondus, -eris, a weight: cf. F. pondéreux. See Ponder.] 1. Very heavy; weighty; as, a ponderous shield; a ponderous load; the ponderous elephant.
The sepulcher...
Hath oped his ponderous and marble jaws. Shak.
2. Important; momentous; forcible. “Your more ponderous and settled project.” Shak.
3. Heavy; dull; wanting; lightless or spirit; as, a ponderous style; a ponderous joke.
Ponderous spar(Min.), heavy spar, or barytes. See Barite.