utopian◼◼◼(ideal but often impractical; visionary) adjective [UK: juː.ˈtəʊ.pɪən] [US: juːˈto.ʊ.pɪən]I doubt that this utopian future will come to pass. = Je doute que ce futur utopique advienne.
visionary◼◻◻(idealistic or utopian) adjective [UK: ˈvɪ.ʒən.ri] [US: ˈvɪ.ʒə.ˌne.ri]
pie-in-the-sky◼◻◻(of a dream unlikely to ever come true) adjective