falsifying

fal·si·fy  (fôls-f)

v. fal·si·fied, fal·si·fy·ing, fal·si·fies

v.tr.

1. To state untruthfully; misrepresent.

2.

a. To make false by altering or adding to: falsify testimony.

b. To counterfeit; forge: falsify a visa.

3. To declare or prove to be false.

v.intr.

To make untrue statements; lie.

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[Middle English falsifien, from Old French falsifier, from Late Latin falsificre : Latin falsus, false; see false + Latin -ficre, -fy.]

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falsi·fi·cation (-f-kshn) n.

falsi·fier n.

Thesaurus

Noun

1.

falsifying - the act of determining that something is false refutal, disproof, refutation, falsification determination, finding - the act of determining the properties of something, usually by research or calculation; "the determination of molecular structures"