(obsolete) Something which has the same value or amount (as something else). (attributive use passing into adjective, below)

Equivalent in meaning or effect; amounting to the same thing in practical terms, even if being technically distinct.

(obsolete) To amount to as much; to be equivalent.

simple past tense and past participle of tantamount

present participle of tantamount

Third-person singular simple present indicative form of tantamount

plural of tantamount