A woman proudly displaying her valid driver's license.
- An example of valid is a driver's license that hasn't expired.
- An example of valid is someone giving evidence that proves an argument.
The definition of valid is something effective, legally binding or able to withstand objection.
- having legal force; properly executed and binding under the law
- well-grounded on principles or evidence; able to withstand criticism or objection, as an argument; sound
- effective, effectual, cogent, etc.
- Archaic robust; strong; healthy
- Logic correctly derived or inferred according to the rules of logic
Origin of validFrench valide from Classical Latin validus, strong, powerful (in ML, valid) from valere, to be strong: see value
- Well grounded; just: a valid objection.
- Producing the desired results; efficacious: valid methods.
- Having legal force; effective or binding: a valid title.
- Logic a. Containing premises from which the conclusion may logically be derived: a valid argument.b. Correctly inferred or deduced from a premise: a valid conclusion.
- Archaic Of sound health; robust.
Origin of validFrench valide from Old French from Latin validus strong from valēre to be strong ; see wal- in Indo-European roots.
- va·lid′i·ty val′id·ness
(comparative more valid, superlative most valid)
- Well grounded or justifiable, pertinent.
- I will believe him as soon as he offers a valid answer.
- Acceptable, proper or correct.
- A valid format for the date is MM/DD/YY.
- Do not drive without a valid license.
- Related to the current topic, or presented within context, relevant.
- (logic) A formula or system that evaluates to true regardless of the input values.
- (logic) An argument whose conclusion is always true whenever its premises are true.
- An argument is valid if and only if the set consisting of both (1) all of its premises and (2) the contradictory of its conclusion is inconsistent.
- (in logic: argument whose conclusion is always true whenever its premises are all true): sound
From Middle French valide
valid - Legal Definition
- Legally binding, such as a valid agreement.
- Having merit, as in, “given the facts presented in this case, it is valid to conclude that she did what she was charged with having done.”