What Is Another Word For Valid?

What Is Another Word For Valid? analytic. (or analytical), coherent, consequent, good, logical, rational, reasonable, What is the synonym and antonym of valid? valid. Antonyms: weak, invalid, powerless, unsound, unsubstantial, unavailable, inefficient, insufficient, inoperative, obsolete, effete, superseded, inconclusive. Synonyms: strong, powerful, cogent, weighty, sound, substantial, available, efficient, sufficient, operative, conclusive. What words are related to