/ Dictionary / Index S sweptback: Meaning and Definition of Find definitions for: swept•back Pronunciation: (swept'bak'), [key] — adj. Aeron. (of the leading edge of an airfoil) forming a markedly obtuse angle with the fuselage. (of an aircraft or winged missile) having wings of this type. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sweptback (Thesaurus) swept sweptwing Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language