- to establish the truth, accuracy, validity, or genuineness of; corroborate; verify: This report confirms my suspicions.
- to acknowledge with definite assurance: Did the hotel confirm our room reservation?
- to make valid or binding by some formal or legal act; sanction; ratify: to confirm a treaty; to confirm her appointment to the Supreme Court.
- to make firm or more firm; add strength to; settle or establish firmly: Their support confirmed my determination to run for mayor.
- to strengthen (a person) in habit, resolution, opinion, etc.: The accident confirmed him in his fear of driving.
- to administer the religious rite of confirmation to.
Origin of confirm
Synonyms for confirmSee more synonyms for on Thesaurus.com
Antonyms for confirm
- made certain as to truth, accuracy, validity, availability, etc.: confirmed reports of new fighting at the front; confirmed reservations on the three o'clock flight to Denver.
- settled; ratified.
- firmly established in a habit or condition; inveterate: a confirmed bachelor.
- given additional determination; made resolute.
- having received the religious rite of confirmation.
Origin of confirmed
Related Words for unconfirmedambiguous, problematic, suspicious, dubious, arguable, controversial, vague, debatable, unproven, unwarranted, unsubstantiated, gratuitous, unjustified, groundless, flimsy, untenable, unjustifiable, unfounded, unsupported, unsettled
Examples from the Web for unconfirmed
Contemporary Examples of unconfirmed
Unconfirmed reports in the French media claimed that the brothers were spotted at a gas station in northern France on Thursday.France Mourns—and Hunts
Nico Hines, Christopher Dickey
January 8, 2015
There are unconfirmed reports ISIS has stolen three fighter planes from Iraqi bases it conquered.ISIS Video: America’s Air Dropped Weapons Now in Our Hands
October 21, 2014
The impact, even among cities with unconfirmed cases, is substantial.Midwest's 'Mystery Virus' Is Scary but Not Deadly
September 8, 2014
There were unconfirmed reports of police firing rubber bullets into the crowds.'What You Gonna Do, Kill Us All?' Protesters Ask Ferguson Police
August 12, 2014
Similarly, in the Syrian civil war, there are unconfirmed reports that pilots from North Korea are flying jets in combat.Exclusive: Putin’s Pilots Set to Fly Over Iraq
July 1, 2014
Historical Examples of unconfirmed
It cannot positively be said that it is untrue; but it can be said that it is unconfirmed.The Life of Cesare Borgia
Unconfirmed tradition should not be confounded with authentic history.Jesus the Christ
James Edward Talmage
What is new, and what is old, are alike unsettled, unconfirmed.
There, too, he will find my unconfirmed theories of its nature.Tono Bungay
H. G. Wells
Such are the unconfirmed statements of the advocates of the Academy.English Painters
Harry John Wilmot-Buxton
- not confirmed; uncorroboratedunconfirmed reports
- (may take a clause as object) to prove to be true or valid; corroborate; verify
- (may take a clause as object) to assert for a second or further time, so as to make more definitehe confirmed that he would appear in court
- to strengthen or make more firmhis story confirmed my doubts
- to make valid by a formal act or agreement; ratify
- to administer the rite of confirmation to
Word Origin for confirm
- (prenominal) long-established in a habit, way of life, etca confirmed bachelor
- having received the rite of confirmation
- (of a disease) another word for chronic
mid-13c., confirmyn "to ratify," from Old French confermer (13c., Modern French confirmer) "strengthen, establish, consolidate; affirm by proof or evidence; anoint (a king)," from Latin confirmare "make firm, strengthen, establish," from com-, intensive prefix (see com-), + firmare "to strengthen," from firmus (see firm (adj.)). Related: Confirmative; confirmatory.
late 14c., of diseases, "firmly established," past participle adjective from confirm. Of persons and their habits, from 1826.