Added 10 October 2026 sweptback adjective Categories: Describing WordsObscure Words adjective ! Definition from WordNet 3.1, Princeton University. More about sweptback at Wordnik → Where our words come from → (especially of aircraft wings) angled rearward from the point of attachment. aircraft with sweptback wings Used of hair. Origin From swept + back. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: backsweptbackwardsweptupsweptinswepttwillbackwheelbackupwindwavedupwindingwindinguphand Back to today's word