Pre-sŭmp'tŭ-ōŭs, a.
(-zŭmt'/yū-us, 84), a. [Lat. præsumptuosus and præsumptiosus, Pg. presumptuoso, Sp. & It. presumptuoso, Pr. presumptuos, Fr. présomptueux. See PRESUMPTION.]
Sense 1. Full of presumption; presuming; over-confident or venturesome; going beyond bounds of due self-appreciation or modesty; audacious; taking liberties unduly; arrogant; as, a presumptuous commander.
There is a class of presumptuous men whom age has not made cautious, nor adversity wise. Buckminster.
Sense 2. Founded on presumption; proceeding from excess of confidence. “Raised by false presumptuous hope.” Milton.
Sense 3. Done with bold design, rash confidence, or in violation of known duty; willful; as, a presumptuous sin.
Synonyms—Over-confident; foolhardy; rash; presuming; forward; arrogant; insolent.