Meaning & use
Definitionally
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By definition; as a necessary consequence of how a term or concept is defined.
See it in a sentence
A bachelor is, definitionally, an unmarried man.
The theory is definitionally unfalsifiable, since any contrary evidence is explained away by its own terms.
A note on using this word
A formal adverb often used in philosophy, logic, and academic writing to signal that a claim follows purely from a term's meaning.
Words with a similar meaning
inherentlyby definition
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