Equivalent in seriousness to; virtually the same as,
Equivalent in seriousness to; virtually the same as
the resignations were tantamount to an admission of guilt
equivalent: being essentially equal to something; "it was as good as gold"; "a wish that was equivalent to a command"; "his statement was tantamount to an admission of guilt"
The Richleighs of Tantamount is a children’s historical novel written by British author Barbara Willard. It was originally published in the United Kingdom in 1966 by the publishers, Constable, before being published in the United States by Harcourt, Brace & World in June 1967. C. ...
Something which has the same value or amount (as something else). (attributive use passing into adjective, below); To amount to as much; to be equivalent; Equivalent in meaning or effect
(adj.) equivalent in value or significance (When it comes to sports, fearing your opponent is tantamount to losing.)
(adj) - equivalent in effect or value
p. 465: equivalent, as in value, force, effect, or signification. It is of tantamount importance that you find her as soon as possible.