from
The Collaborative International Dictionary of English v.0.48
Incongruous \In*con"gru*ous\, 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]