/ Dictionary / Index C cumbrous: Meaning and Definition of Find definitions for: cum•brous Pronunciation: (kum'brus), [key] — adj. cumbersome. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cumbrous (Thesaurus) Cumbria cum dividend Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language