cavernous vs erectile

cavernous and erectile both are adjectives.

Word	Noun	Adjective	Verb	Adverb
cavernous	No	Yes	No	No
erectile	No	Yes	No	No

As adjectives, cavernous and erectile are synonyms defined as:

cavernous and erectile: filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood

cavernous (adjective)	erectile (adjective)
filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood	capable of being raised to an upright position
being or suggesting a cavern	filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood