theologian vs theologist

theologian and theologist both are nouns.

Word	Noun	Adjective	Verb	Adverb
theologian	Yes	No	No	No
theologist	Yes	No	No	No

As nouns, theologian and theologist are synonyms defined as:

theologian and theologist: someone who is learned in theology or who speculates about theology

Other synonyms of theologian include theologiser, theologizer.

theologian (noun)	theologist (noun)
someone who is learned in theology or who speculates about theology	someone who is learned in theology or who speculates about theology