authenticate[verb]Synonyms: confirm, bear out, corroborate, justify, substantiate, validate, verify
Antonyms: impugn
Contrasted words: reject, repudiate, spurn, contradict, deny, negate
Related Words: accredit,
approve,
endorse,
demonstrate,
prove,
test,
try,
avouch,
vouch (for) [TahlilGaran] English Synonym Dictionary ▲