Answer: equivalence in significance, effect, or value
Word Origin mid 17th century: from the earlier verb tantamount 'amount to as much' from Italian tanto montare.
Scrabble Points: 12
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Tantamount definition is - equivalent in value significance or effect. How to use tantamount in a sentence. Did you know?
Tantamount definition equivalent as in value force effect or signification: His angry speech was tantamount to a declaration of war. See more.
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Define tantamount . tantamount synonyms tantamount pronunciation tantamount translation English dictionary definition of tantamount . adj. Equivalent in effect or value: a request tantamount to a demand.
tantamount definition: 1. being almost the same or having the same effect as something usually something bad: 2. being…. Learn more. ...