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Definition of validity

validity

/vəˈlɪdəti/
va · lid · i · ty
Adverb:validly
•
Plural:validities
•
Adjective:valid
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validity Lexical Profile

validity Game Scores & Validity

• noun

1

The quality of being logically or factually sound, well-founded, and convincing.

Example

"Independent researchers conducted several experiments to test the validity of the original hypothesis."

2

The state of being legally or officially binding, acceptable, or in force.

Example

"Travelers should check the validity of their passports at least six months before departing for an international flight."

Synonyms
View all synonyms for validity
Antonyms
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Word Nuance & Usage

In research and statistics, 'validity' refers to how accurately a method measures what it is intended to measure, whereas 'reliability' refers to the consistency of those measurements over time.

• Rhymes for validity

• Nearby Words

validate
validation
validator
validity
validly
valise
valium

Word Origin & Etymology

Borrowed in the late 16th century from Middle French validité or Late Latin validitas, from Latin validus meaning 'strong, effective, or legally sound,' ultimately from the verb valere ('to be strong or worthy').

Cite this Entry

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