valid
adj.adj. something that is legally or officially acceptable. It can also describe an idea or argument that is based on truth or good reasons.
adj. legally or officially binding and acceptable; logically sound or based on evidence. Often used to describe the internal consistency of an argument where the conclusion follows from the premises.
Your passport must be valid for at least six months.
The researcher raised several valid points about the study's small sample size during the meeting.
While the logic of the argument is technically valid, the conclusion remains questionable because the initial assumptions are based on outdated data.
Borrowed from Middle French valide (“healthy, sound, in good order”), from Latin validus, from valeō (“to be strong, to be healthy, to be worth”) + -idus, from Proto-Indo-European *h₂welh₁- (“be strong”).
Typically used as a predicative adjective after a linking verb or as an attributive adjective before a noun.
This ticket is not more valid.This ticket is no longer valid.Learners often use 'more' to indicate time rather than 'longer' when describing the expiration of validity.