uncongenial vs incompatible

uncongenial and incompatible both are adjectives.

Word	Noun	Adjective	Verb	Adverb
uncongenial	No	Yes	No	No
incompatible	No	Yes	No	No

As adjectives, uncongenial and incompatible are synonyms defined as:

uncongenial (adjective)	incompatible (adjective)
not suitable to your tastes or needs	used especially of drugs or muscles that counteract or neutralize each other's effect
used of plant stock or scions; incapable of being grafted	not compatible
very unfavorable to life or growth	incapable of being used with or connected to other devices or components without modification
	not suitable to your tastes or needs
	of words so related that one contrasts with the other
	used especially of solids or solutions; incapable of blending into a stable homogeneous mixture
	not in keeping with what is correct or proper
	not compatible with other facts
	not easy to combine harmoniously