The meaning of VALID is having legal efficacy or force; especially : executed with the proper legal authority and formalities. How to use valid in a sentence. Synonym Discussion of Valid.

VALID definition: sound; just; well-founded. See examples of valid used in a sentence.

Something that is valid is important or serious enough to make it worth saying or doing. Most designers share the unspoken belief that fashion is a valid form of visual art.

VALID meaning: 1. based on truth or reason; able to be accepted: 2. A ticket or other document is valid if it is…. Learn more.

These adjectives describe assertions, arguments, conclusions, reasons, or intellectual processes that are persuasive because they are well founded. What is valid is based on or borne out by truth or fact …

(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 …

Definition of valid adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Valid definition: Well grounded; just.

Jan 25, 2026 · Adjective valid (comparative more valid, superlative most valid) Well-grounded or justifiable, pertinent. Synonyms: arguable, groundly, proper, warrantable I will believe him as soon as …

There are nine meanings listed in OED's entry for the adjective valid, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.