fugacious From WikiWord, the free dictionary /fjuːˈɡeɪ.ʃəs/ English Contents DefinitionsRelated wordsReferences DefinitionsadjectiveFleeting, fading quickly, transient. Related wordsSynonymstransientpassingephemeraltransitoryshort-livedimpermanenttemporaryfugientfugitiveflitflightfluctionalaflightswiftfienticflicky References Wiktionary — fugacious Wikipedia — fugacious