Pre*sump"tu*ous (?; 135), a. [L. praesumptuosus:
cf. F. présomptueux, OF. 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." Ps. xix. 13.
Syn. -- Overconfident; foolhardy; rash; presuming;
forward; arrogant; insolent.
Hear it pronounced