falsifiable

American  

[fawl-suh-fahy-uh-buhl] / ˌfɔl səˈfaɪ ə bəl /

adjective

1. able to be altered or represented falsely.

   Using this technology ensures that customer transactions are tamper-resistant and not falsifiable.

2. able to be proven false.

   All scientific theories are falsifiable: if evidence that contradicts a theory comes to light, the theory itself is either modified or discarded.

---

Other Word Forms

• falsifiability noun
• nonfalsifiable adjective
• unfalsifiable adjective

Etymology

Origin of falsifiable

First recorded in 1605–15; falsify ( def. ) + -able ( def. )

Example Sentences

In the sciences, this ideal is embedded in the Popperian method: Theories must be falsifiable, and progress comes not through confirming our beliefs, but by trying to disprove them.

From Salon • Jul. 13, 2025

It asks the state to present something tangible, something falsifiable, before crossing the threshold.

From Slate • Jul. 3, 2025

These outlets generally steer away from clearly falsifiable assertions — they have to worry about lawsuits.

From Seattle Times • Oct. 3, 2021

Recent rule-making updates that draw finer lines in the fuzzy area between exaggerations and flat-out falsifiable claims should help resolve these discrepancies.

From Washington Post • Sep. 4, 2020

People may be able to take solace from it, but it’s clear that the statement is not falsifiable and hence, as the English philosopher Karl Popper has insisted, not part of science.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos