inappropriate vs out of keeping

inappropriate and out of keeping both are adjectives.

Word	Noun	Adjective	Verb	Adverb
inappropriate	No	Yes	No	No
out of keeping	No	Yes	No	No

As adjectives, inappropriate and out of keeping are synonyms defined as:

inappropriate and out of keeping: not in keeping with what is correct or proper

Other synonyms of inappropriate include incompatible, unfitting.

inappropriate (adjective)	out of keeping (adjective)
not suitable for a particular occasion etc	not in keeping with what is correct or proper
not in keeping with what is correct or proper