·adj Founded on presumption; as, a presumptuous idea.
II. Presumptuous ·adj Done with hold design, rash confidence, or in violation of known duty; willful.
III. Presumptuous ·adj Full of presumption; presuming; overconfident or venturesome; audacious; rash; taking liberties unduly; arrogant; insolent; as, a presumptuous commander; presumptuous conduct.