competent
adjective
uk/ˈkɒmpɪtənt/ usable to do something well:
A competent sales manager should have known exactly what to do in that situation.
Operators must be fully competent in the use of the system.
We have highly competent consultants, with a broad range of expertise.
good enough, but not excellent:
People who work for us need to be more than merely competent; they need to excel.
LAW
able or allowed to make legal decisions:
The prospective jurors did not indicate whether they thought the plaintiff was competent.
competently
adverb uk/ˈkɒmpɪtəntli/ us/ˈkɑːmpəṱənt-/
Each candidate implies that the other cannot be trusted to run the economy competently.