Tantamount

/ˈtæntəmaʊnt/

Meaning & Definition

adjective
Equivalent in value, significance, or effect.
His refusal to participate was tantamount to an admission of guilt.
Having the same meaning as.
For practical purposes, the two phrases are tantamount.
Being virtually the same as.
To deny the benefits of education is tantamount to denying future opportunities.
Equal in effect or importance.
The changes to the policy were tantamount to a complete overhaul of the system.

Etymology

From Latin 'tantus' meaning 'so great' and 'amount' referring to the quantity.

Common Phrases and Expressions

tantamount to betrayal
As serious as betrayal.
tantamount to a crime
As serious as committing a crime.
tantamount to nothing
Having no value or significance.

Related Words

equivalence
The condition of being equivalent.
parity
The state or condition of being equal.
similarity
The quality of being alike or resembling.

Slang Meanings

Basically the same thing.
His excuse was tantamount, it was basically the same as saying 'I didn't do it.'
Just as bad.
Ignoring the issue is tantamount to letting it go.