1. Strong; powerful; efficient. [Obs.] "Perhaps more valid arms . . . may serve to better us." Milton. 2. 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. An answer that is open to no valid exception. I. Taylor. 3. (Law) Havin...
