appraisal vs evaluation

appraisal and evaluation both are nouns.

Word	Noun	Adjective	Verb	Adverb
appraisal	Yes	No	No	No
evaluation	Yes	No	No	No

As nouns, evaluation is a hyponym of appraisal; that is, evaluation is a word with a more specific, narrower meaning than appraisal:

appraisal: the classification of someone or something with respect to its worth
evaluation: an appraisal of the value of something

appraisal (noun)	evaluation (noun)
an expert estimation of the quality, quantity, and other characteristics of someone or something	act of ascertaining or fixing the value or worth of
the classification of someone or something with respect to its worth	an appraisal of the value of something
a document appraising the value of something (as for insurance or taxation)