/ Dictionary / Index J jointless: Meaning and Definition of Find definitions for: joint•less Pronunciation: ( joint'lis), [key] — adj. without a joint; lacking a joint. formed as a single piece, without jointing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. joint issue joint life annuity Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language