Non-cogent

[koh-juh nt] /ˈkoʊ dʒənt/

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

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Non-cognizance
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