Learn how to say Ponderosity correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word ponderous:
slow and clumsy because of great weight:
a swarthy, ponderous giant of a man
(especially of speech or writing) dull or laborious:
the show is loaded down with ponderous one-liners
late Middle English: via French from Latin ponderosus, from pondus, ponder- ‘weight’