- pertinent, to the point - having precise or logical relevance to the matter at hand; "a list of articles pertinent to the discussion"; "remarks that were to the point"
Antonym: irrelevant (indirect, via relevant)
- apposite, appropriate, apt, pertinent - being of striking appropriateness and pertinence; "the successful copywriter is a master of apposite and evocative verbal images"; "an apt reply"
Antonym: malapropos (indirect, via apropos)