na-adjective
proper; respectable; decent; honest
Describes a person, lifestyle, job, or action that is upright, law-abiding, and socially acceptable. Often used in contrast to shady or irresponsible behavior.
He has a respectable job and supports his family.
そんなことをするのは真っ当な人間じゃない。
A decent person wouldn't do something like that.
adverb
Only when written 全う
Archaic adverbial use, now largely replaced by 全く (まったく). Found in classical or highly formal contexts.
古い文献では「全う」が「まったく」の意味で使われることがある。
In old texts, 全う is sometimes used to mean 'completely'.