supported vs buttressed

supported and buttressed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
supported	No	Yes	No	No
buttressed	No	Yes	No	No

supported (adjective)	buttressed (adjective)
held up or having the weight borne especially from below	held up by braces or buttresses
sustained or maintained by aid (as distinct from physical support)