/ Dictionary / Index P ponderous: Meaning and Definition of Find definitions for: pon•der•ous Pronunciation: (pon'dur-us), [key] — adj. of great weight; heavy; massive. awkward or unwieldy: He carried a ponderous burden on his back. dull and labored: a ponderous dissertation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ponderous (Thesaurus) ponderosa pine Pondicherry Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language