Difference between Unreasonable and Incongruous

UNREASONABLE vs INCONGRUOUS: ADJECTIVE

Lacking in harmony or compatibility or appropriateness
Lacking in harmony; incompatible.
Not in agreement, as with principles; inconsistent.
Not in keeping with what is correct, proper, or logical; inappropriate.
Not congruous; reciprocally disagreeing; not capable of harmonizing or readily assimilating; inharmonious; inappropriate; unsuitable; not fitting; inconsistent; improper
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.
Not similar or congruent; not matching or fitting in.

Inconvenient.
Synonyms Absurd, Silly, Foolish, etc. (see absurd), obstinate, wrong-headed, extravagant, unfair, unjust, extortionate.
Not endowed with reason; irrational.
Exceeding the bounds of reason; beyond what is reasonable or moderate; exorbitant; immoderate: as, an unreasonable price.
Not listening to or acting according to reason; not guided by reason; not influenced by reason.
Not showing good judgment
Not reasonable or agreeable to reason; irrational.

Synonyms Inconsistent, etc. (see incompatible), unsuitable, unsuited, unfit, inappropriate, ill-matched, out of keeping.
Consisting of inappropriate parts, or of parts not fitly put together; disjointed: as, an incongruous story.
Not congruous; incapable of reciprocally fitting and agreeing; unsuited or unsuitable; inharmonious.
In the theory of numbers, not congruent: thus, 7 and 8 are incongruous to the modulus 3, giving different remainders when divided by the modulus.

Senseless, Incongruous, Silly, Indefensible, Inordinate, Undue, Foolish, Untenable, Excessive, Absurd, Irrational, Illogical, Unrealistic, Unjustified, Unwarranted

Preposterous, Odd, Unlogical, Out or keeping, Discrepant, Inconsistent, Unreasonable, Inappropriate, Unfitting, Incompatible, Ironical, Illogical, Inharmonious, Ironic, Absurd

Senseless, Incongruous, Silly, Indefensible, Inordinate, Undue, Foolish, Untenable, Excessive, Absurd, Irrational, Illogical, Unrealistic, Unjustified, Unwarranted

Preposterous, Odd, Unlogical, Out or keeping, Discrepant, Inconsistent, Unreasonable, Inappropriate, Unfitting, Incompatible, Ironical, Illogical, Inharmonious, Ironic, Absurd

Disarm unreasonable and difficult behavior when correctly used.
Therefore all progress depends on the unreasonable man.
An attorney shall not make an agreement for, charge, or collect an unreasonable fee or an unreasonable amount for expenses.
It would, for example be unreasonable to insist on compliance with the clause if it was unreasonable or impossible for the person to comply.
Whether a behaviour is unreasonable can depend on whether a reasonable person might see the behaviour as unreasonable in the circumstances.
Charter arguments, such as unreasonable delay, the right to be secure against unreasonable search and seizure, and the right to counsel.
You can definitely sue for unreasonable delays if you can prove that the delays are, in fact, unreasonable.
The traveller complained that the arrest was unreasonable and that various actions of the involved police officers were unreasonable.
An unreasonable comprehensive doctrine is unreasonable in the sense that it is incompatible with the duty of civility.
The Right Against Unreasonable Search and Seizure The Fourth Amendment protects persons from unreasonable searches and seizures.