Synonyms

a fortiori

American

[ah fohr-ti-oh-ree, ay fawr-shee-awr-ahy, ay fohr-shee-ohr-ahy] / ɑ ˌfoʊr tɪˈoʊ ri, eɪ ˌfɔr ʃiˈɔr aɪ, eɪ ˌfoʊr ʃiˈoʊr aɪ /

adverb

Latin.

for a still stronger reason; even more certain; all the more.

a fortiori British

/ eɪ ˌfɔːtɪˈɔːraɪ, ɑː-, -rɪ /

adverb

for similar but more convincing reasons

if Britain cannot afford a space programme, then, a fortiori, neither can India

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of a fortiori

Latin

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

a fortiori

"That said... that does not mean that the individuals who were targeted, and a fortiori the person who died, were themselves involved in trafficking. I want to be absolutely clear on that".

From BBC ● May 15, 2026

For, after all, is it not by now conceded that, a fortiori, if marzeydoats and doazey-doats then the invariable corallary is habeas corpus mandamus potatus?

From Time Magazine Archive

Finally, a physico-chemical explanation of the motions of the amoeba, and a fortiori of the behavior of the Infusoria, seems impossible to many of those who have closely observed these rudimentary organisms.

From Creative Evolution by Arthur Mitchell

Therefore if accidents can be real, a fortiori incomplete substances can be real.

From Ontology or the Theory of Being by Peter Coffey

The care of God for man is generally argued, a fortiori, from His care for inferior creatures.

From Conversion of a High Priest into a Christian Worker by M. (Meletios) Golden

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023