/ Dictionary / Index U underfeed: Meaning and Definition of Find definitions for: un•der•feed Pronunciation: (un"dur-fēd' for 1 un'der-fēd" for 2), [key] — -fed, -feed•ing. to feed insufficiently. to feed with fuel from beneath. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. underexposure underfired Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language