unfaceted
/ʌnˈfæsɪtɪd/Definitions
1. adjective
not having facets or features; lacking variety or interest
“The movie was unfaceted, with a predictable plot and unoriginal characters.”
2. noun
a gemstone or crystal that has not been cut to reveal its facets
“The unfaceted diamond was still a valuable gem, even in its raw form.”