埋まい没ぼつ費ひ用ようまいぼつひようMeanings1nounsunk costeconomicsEconomics term for a cost that has already been incurred and cannot be recovered. Often contrasted with サンクコスト (loanword) and 埋没原価 (synonym).See also: サンクコスト · 埋没原価埋まい没ぼつ費ひ用ようは、意い思し決けっ定ていの際さいに考こう慮りょすべき