priestlike vs priestly

priestlike and priestly both are adjectives.

Word	Noun	Adjective	Verb	Adverb
priestlike	No	Yes	No	No
priestly	No	Yes	No	No

As adjectives, priestlike and priestly are synonyms defined as:

priestlike and priestly: befitting or characteristic of a priest or the priesthood

priestlike (adjective)	priestly (adjective)
befitting or characteristic of a priest or the priesthood	befitting or characteristic of a priest or the priesthood
	associated with the priesthood or priests