Definition
To affirm is to say firmly and publicly that something is true — to assert it, and to stand behind it. From Latin affirmare, 'to make firm', it is the opposite of leaving things tentative: where a doubt wavers, an affirmation is set down hard. In law a higher court affirms a ruling it agrees with; in argument, fresh evidence can affirm a hypothesis rather than refute it. It can also mean to validate a person — to affirm someone is to confirm that they matter.
Examples
- The new data did not refute the model; if anything, it affirmed the hypothesis.
- She affirmed, calmly and without hedging, that the figures were entirely her own.
- On appeal, the higher court affirmed the original verdict.
Collocations
affirm a commitment·affirm the ruling·strongly affirm·affirm that
Synonyms
assert·confirm·declare·maintain·uphold
Antonyms
deny·refute·contradict
Word family
affirmation (noun)·affirmative (adjective)
In TOEFL & IELTS
A precise, formal verb for IELTS Writing on debate and for TOEFL legal and academic reading ('the court affirmed…'). It pairs with 'commitment', 'ruling' and a 'that'-clause. Distinguish it from confirm (to check a fact): to affirm is to declare a stance, often a moral or legal one. Its direct opposite move is to refute.