valid
Americanadjective
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sound; just; well-founded.
a valid reason.
-
producing the desired result; effective.
a valid antidote for gloom.
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having force, weight, or cogency; authoritative.
- Synonyms:
- cogent, substantial
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legally sound, effective, or binding; having legal force.
a valid contract.
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Logic. (of an argument) so constructed that if the premises are jointly asserted, the conclusion cannot be denied without contradiction.
- Synonyms:
- convincing, logical
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Archaic. robust; well; healthy.
adjective
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having some foundation; based on truth
-
legally acceptable
a valid licence
-
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having legal force; effective
-
having legal authority; binding
-
-
having some force or cogency
a valid point in a debate
-
logic (of an inference or argument) having premises and conclusion so related that whenever the former are true the latter must also be true, esp ( formally valid ) when the inference is justified by the form of the premises and conclusion alone. Thus Tom is a bachelor; therefore Tom is unmarried is valid but not formally so, while today is hot and dry; therefore today is hot is formally valid Compare invalid 2
-
archaic healthy or strong
Other Word Forms
- nonvalid adjective
- nonvalidly adverb
- nonvalidness noun
- prevalid adjective
- prevalidly adverb
- quasi-valid adjective
- quasi-validly adverb
- validity noun
- validly adverb
- validness noun
Etymology
Origin of valid
First recorded in 1565–75; from Latin validus “strong,” from val(ēre) “to be strong” + -idus -id 4; prevail ( def. )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Until now, a valid birth certificate had been sufficient to establish a person’s U.S. citizenship.
From Los Angeles Times
“Even if that sounds unusual to the crisis center worker, it is still a valid and acceptable answer.”
From Los Angeles Times
He said initially the priority would be returning "those who no longer have a valid residence rights", especially criminal offenders.
From BBC
It’s not clear whether that document was legally valid.
From MarketWatch
Mid and East Antrim Council said that "any property being sold or rented must have a valid Energy Performance Certificate, which reflects insulation and energy efficiency".
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
