ˌdɪsɪˈpeɪʃən ˌdɪsəˈl(j)uːʃən ˌdɪsəˈluʃən ˈluːsnəs ˈpɹɑflɪɡəsi useless or profitless activity; using or expending or consuming thoughtlessly or carelessly if the effort brings no compensating gain, it is a waste mindless dissipation of natural resources dissolute indulgence in sensual pleasure breaking up and scattering by dispersion the dissipation of the mist