petrous vs stonelike

petrous and stonelike both are adjectives.

Word	Noun	Adjective	Verb	Adverb
petrous	No	Yes	No	No
stonelike	No	Yes	No	No

As adjectives, petrous and stonelike are synonyms defined as:

petrous and stonelike: (of bone especially the temporal bone) resembling stone in hardness

petrous (adjective)	stonelike (adjective)
(of bone especially the temporal bone) resembling stone in hardness	(of bone especially the temporal bone) resembling stone in hardness