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"役に立たないか無益な活動蕩尽
例:mindless dissipation of natural resources 天然資源の心ない無駄遣い
breaking up and scattering by dispersion; "the dissipation of the mist"分散によりばらばらに散らばること消散
例:The dissipation of the mist. 霧の消散。
dissolute indulgence in sensual pleasure官能的欲求へ耽溺すること放蕩