ossified vs fossilized

ossified and fossilized both are adjectives.

Word	Noun	Adjective	Verb	Adverb
ossified	No	Yes	No	No
fossilized	No	Yes	No	No

As adjectives, ossified and fossilized are synonyms defined as:

ossified and fossilized: set in a rigidly conventional pattern of behavior, habits, or beliefs

Other synonyms of ossified include fossilised.

ossified (adjective)	fossilized (adjective)
set in a rigidly conventional pattern of behavior, habits, or beliefs	set in a rigidly conventional pattern of behavior, habits, or beliefs