Adequate to, up to (7)
I believe the answer is:
capable
I believe this is a double definition.
'adequate to' is the first definition.
(synonyms)
'up to' is the second definition.
(synonyms)
(Other definitions for capable that I've seen before include "Of a person, competent" , "Able, proficient" , "Able, competent" , "qualified" , "accomplished" .)