/ Dictionary / Index A airless: Meaning and Definition of Find definitions for: air•less Pronunciation: (âr'lis), [key] — adj. lacking air. that is without fresh air; stuffy: a dark, airless hallway. that is without a breeze; still: an airless July day. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: airless (Thesaurus) air layering air letter Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language