pertinent UK /ˈpəːtɪnənt/US /ˈpɚtɪnənt/adjective 1noun 1forms 3 adjective1 •Important with regard to (a subject or matter); pertaining; relevant.Fourthly, I have made an effort to call the attention of the reader to the pertinent literature. — 1992 noun1 •A right that attaches to land, in Scots law. formspertinents · more pertinent · most pertinent