opencast vs opencut

opencast and opencut both are adjectives.

Word	Noun	Adjective	Verb	Adverb
opencast	No	Yes	No	No
opencut	No	Yes	No	No

As adjectives, opencast and opencut are synonyms defined as:

opencast and opencut: (of mines and mining) worked from the exposed surface

opencast (adjective)	opencut (adjective)
(of mines and mining) worked from the exposed surface	(of mines and mining) worked from the exposed surface