Synonyms of tantamount to in English:

tantamount to

See definition of tantamount


1‘not taking action would be tantamount to dereliction of duty’

equivalent to, equal to, amounting to, as good as, more or less, synonymous with, virtually the same as, much the same as, comparable to, on a par with, commensurate with, along the lines of, as serious as, identical to