certified

adjectives

endorsed authoritatively as having met certain requirements
"a certified public accountant"
antonym
is similar to
capable of being guaranteed or certified
"a certifiable fact"
is similar to
furnished with or authorized by a certificate: "certificated teachers"
is similar to
certified as professional by evidence or testimonials
"credentialled day care workers"
see also
endowed with authority
see also
furnished with or supported by documents
"the first documented case of shark attack in those waters"
fit to be certified as insane (and treated accordingly)
holding appropriate documentation and officially on record as qualified to perform a specified function or practice a specified skill
"a registered pharmacist"; "a registered hospital"