Webster's Revised Unabridged Dictionary · 1913

Presumptuous

Presumptuous (?; 135) , adjective

[Latin praesumptuosus: compare French présomptueux, Old French also presumptuous. See Presumption.]

1.
Full of presumption; presuming; overconfident or venturesome; audacious; rash; taking liberties unduly; arrogant; insolent; as, a presumptuous commander; presumptuous conduct.
A class of presumptuous men, whom age has not made cautious, nor adversity wise. — Buckminster
2.
Founded on presumption; as, a presumptuous idea.
False, presumptuous hope. — Milton
3.
Done with hold design, rash confidence, or in violation of known duty; willful.
Keep back the servant also from presumptuous sins. — Bible (KJV) - Psalm xix. 13