Making unwarranted presumptions or assumptions, often out of arrogance or excessive self-confidence, and thus exceeding appropriate or rightful limits.
Preſumptuous Prieſt, this place cōmands my patiēce, / Or thou ſhould'ſt finde thou haſt dis-honor'd me.
From Middle English presumptuous, borrowed from Old French presumptieus, presumpcieus, presumptuos, from Latin praesumptuosus.
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