non-cogent

adjective

1. convincing or believable by virtue of forcible, clear, or incisive presentation; telling.
2. to the point; relevant; pertinent.

adjective

1. compelling belief or assent; forcefully convincing

adj.1650s, from French cogent “necessary, urgent” (14c.), from Latin cogentem (nominative cogens), present participle of cogere “to curdle; to compel; to collect,” literally “to drive together,” from com- “together” (see co-) + agere “to drive” (see act (n.)).