VALIDLY

validly

(adverb) with validity; in a valid manner; “this may not validly be done”

Source: WordNet® 3.1

Etymology

Adverb

validly (comparative more validly, superlative most validly)

In a valid manner.

Antonyms

• invalidly

Source: Wiktionary

Val"id*ly, adv.

Definition: In a valid manner; so as to be valid.

VALID

Val"id, a. Etym: [F. valide, F. validus strong, from valere to be strong. See Valiant.]

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)

Definition: 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.

Syn.

– Prevalent; available; efficacious; just; good; weighty; sufficient; sound; well-grounded.

Source: Webster’s Unabridged Dictionary 1913 Edition