tantamount
adjective formal uk/ˈtæn.tə.maʊnt/ us/ˈtæn.t̬ə.maʊnt/
tantamount to something 几近于;等于,相当于
being almost the same or having the same effect as something, usually something bad
Her refusal to answer was tantamount to an admission of guilt. 她拒绝回答等于是认罪。
Synonym: equivalent