1. Belonging or related to the subject or matter in hand; fit or appropriate in any way; adapted to the end proposed; apposite; material; relevant; as, pertinent illustrations or arguments; pertinent evidence.
2. Regarding; concerning; belonging; pertaining. [R.] “Pertinent unto faith.”
Syn: -- Apposite; relevant; suitable; appropriate; fit.
-- Per*ti*nent*ly, adv. -- Per*ti*nent*ness, n.
adv : in a pertinent way; "what is singular about his use of them
is that no other artist, of his time or any other, has
painted them so directly, intimately and pertinently"