Synonyms of tantamount to in English:

tantamount to


See definition of tantamount

phrase

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

SYNONYMS
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