Dictionary and Thesaurus

Definition of Valid

• (a.) Strong; powerful; efficient.
• (a.) Having sufficient strength or force; founded in truth; capable of being justified, defended, or supported; not weak or defective; sound; good; efficacious; as, a valid argument; a valid objection.
• (a.) Having legal strength or force; executed with the proper formalities; incapable of being rightfully overthrown or set aside; as, a valid deed; a valid covenant; a valid instrument of any kind; a valid claim or title; a valid marriage.

Synonyms of Valid

• Binding
• Legal
• Sound
• Effectual
• Legitimate
• Logical
• Reasoned
• Well-Grounded
• Validated
• Reasonable
• Sensible

Antonyms of Valid

• Sophistic
• Void
• Uncollectible
• Bad
• Nullified
• False
• Unsound
• Invalid
• Fallacious
• Invalidated
• Null
• Expired
• Sophistical

Homophones of Valid