In·con·gru·ous a. 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.”
Incongruous denotes that kind of absence of harmony or suitableness of which the taste and experience of men takes cognizance. --C. J. Smith.
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.
adj : lacking in harmony or compatibility or appropriateness; "a
plan incongruous with reason"; "incongruous behavior";
"a joke that was incongruous with polite conversation"