reniform vs kidney-shaped

reniform and kidney-shaped both are adjectives.

Word	Noun	Adjective	Verb	Adverb
reniform	No	Yes	No	No
kidney-shaped	No	Yes	No	No

As adjectives, reniform and kidney-shaped are synonyms defined as:

reniform and kidney-shaped: (of a leaf or bean shape) resembling the shape of kidney

reniform (adjective)	kidney-shaped (adjective)
(of a leaf or bean shape) resembling the shape of kidney	(of a leaf or bean shape) resembling the shape of kidney