by definition

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necessarily adv.
per se adv.

ADVERB

necessarily

Synonyms

STRONGEST

automatically naturally no doubt undoubtedly unquestionably

WEAK

accordingly as a matter of course axiomatically beyond one's control by its own nature cardinally come what may compulsorily consequently exigently from within fundamentally incontrovertibly indubitably ineluctably inescapably inexorably irresistibly of course of necessity perforce positively pressingly significantly unpreventably vitally willy-nilly without fail

Antonyms

STRONGEST

doubtfully questionably

WEAK

unnecessarily

ADVERB

per se

Synonyms

WEAK

alone as such by and of itself by its very nature by itself fundamentally in essence in itself independently intrinsically of itself singularly solely virtually

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.

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by definition

“Identity by definition is not momentary,” he noted.

From The Wall Street Journal ● Sep. 18, 2026

Open AI models are, by definition, harder to control, as users can alter their parameters -- potentially for malicious purposes.

From Barron's ● Sep. 13, 2026

The inflation threat that bonds face isn’t from inflation that is currently expected but from unexpected inflation — which, by definition, is unexpected.

From MarketWatch ● Aug. 5, 2026

In other words, he seems to think that if the facility is enriching uranium at all, it is by definition military—i.e., its purpose is to build nuclear weapons.

From Slate ● Jul. 23, 2026

Your acquaintances, on the other hand, by definition occupy a very different world than you.

From "The Tipping Point" by Malcolm Gladwell

by definition

Example Sentences

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