Valid Definition
vălĭd
adjective
Well grounded; just.
A valid objection.
American Heritage
Having legal force; properly executed and binding under the law.
Webster's New World
Producing the desired results; efficacious.
Valid methods.
American Heritage
Well-grounded on principles or evidence; able to withstand criticism or objection, as an argument; sound.
Webster's New World
Effective, effectual, cogent, etc.
Webster's New World
Synonyms:
Antonyms:
other
(in logic: argument whose conclusion is always true whenever its premises are all true): sound.
Wiktionary
Origin of Valid
-
French valide from Old French from Latin validus strong from valēre to be strong wal- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
From Middle French valide
From Wiktionary
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