flared fla·red UK/flɛəd/ US/flɛɹd/ rare adjective 1. having a gradual increase in width “flared nostrils” “a skirt flaring from the waist” Synonymsflaring Similarincreasing WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.