Etymology

From Middle French valide

Adjective

valid (comparative more valid, superlative most valid)

1. Well grounded or justifiable, pertinent.
   
   I will believe him as soon as he offers a valid answer.
   
   
2. Acceptable, proper or correct.
   
   A valid format for the date is MM/DD/YY.
   Do not drive without a valid license.
   
   
3. Related to the current topic, or presented within context, relevant.
4. (logic) A formula or system that evaluates to true regardless of the input values.

Antonyms

• invalid

Related terms

• validate
• validation
• validator

This entry is from Wiktionary - Dictionary and thesaurus. Licensed under the Creative Commons Attribution/Share-Alike License.