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Definition of falsifier

falsifier

/ˈfɔːl.səˌfaɪ.ɚ/
fal · si · fi · er
Plural:falsifiers
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falsifier Lexical Profile

falsifier Game Scores & Validity

• noun

1

A person who intentionally alters, fabricates, or misrepresents information, documents, or records in order to deceive others.

Example

"The audit revealed that a skilled falsifier had been manipulating the company's financial ledgers for several years."

2

In logic and the philosophy of science, an empirical observation, statement, or experimental result that proves a hypothesis, proposition, or theory to be false.

Example

"According to Karl Popper, a scientific theory is only meaningful if it admits at least one potential falsifier that can be tested empirically."

Synonyms
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Antonyms
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Word Nuance & Usage

In everyday contexts, "falsifier" carries a strong negative connotation of deliberate fraud or forgery. However, in the philosophy of science (specifically Karl Popper's theory of falsifiability), a "potential falsifier" is a neutral technical term referring to an observable condition or test result that could logically disprove a hypothesis.

• Nearby Words

falsie
falsies
falsification
falsifier
falsify
falsity
falter

Cite this Entry

Wordmom. (2026). Definition of Falsifier. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/falsifier
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