apologist vs justifier

apologist and justifier both are nouns.

Word	Noun	Adjective	Verb	Adverb
apologist	Yes	No	No	No
justifier	Yes	No	No	No

As nouns, apologist and justifier are synonyms defined as:

apologist and justifier: a person who argues to defend or justify some policy or institution

Other synonyms of apologist include vindicator.

apologist (noun)	justifier (noun)
a person who argues to defend or justify some policy or institution	a person who argues to defend or justify some policy or institution