*congruous*

a. [ L. incongruus. See In- not, and Congruous. ] Not congruous; reciprocally disagreeing; not capable of harmonizing or readily assimilating; inharmonious; inappropriate; unsuitable; not fitting; inconsistent; improper; as, an incongruous remark; incongruous behavior, action, dress, etc. “Incongruous mixtures of opinions.” I. Taylor. “Made up of incongruous parts.” Macaulay. [ 1913 Webster ]

Incongruous denotes that kind of absence of harmony or suitableness of which the taste and experience of men takes cognizance. C. J. Smith. [ 1913 Webster ]

Incongruous numbers (Arith.), two numbers, which, with respect to a third, are such that their difference can not be divided by it without a remainder, the two numbers being said to be incongruous with respect to the third; as, twenty and twenty-five are incongruous with respect to four.

Syn. -- Inconsistent; unsuitable; inharmonious; disagreeing; absurd; inappropriate; unfit; improper. See Inconsistent.

-- In*con"gru*ous*ly, adv. -- In*con"gru*ous*ness, n. [ 1913 Webster ]