aligned alig·ned UK/əˈlaɪnd/ US/ʌˈlaɪnd/ uncommon adjective 1. brought into agreement or cooperation on the side of a faction, party, or cause Antonymsnonaligned Similarallied 2. in a straight line “pearly teeth evenly aligned” Similarstraight WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.