Utterly (10)
'utterly' is the definition.
(downright can mean utterly or totally)
This is all the clue.
(Other definitions for downright that I've seen before include "Utter, complete" , "Absolutely!" , "Plain-spoken" , "Out-and-out" , "Frank" .)
'utterly' is the definition.
(synonyms)
This is all the clue.
(Other definitions for absolutely that I've seen before include "I wholly agree!" , "Utterly" , "You bet!" , "Totally" , "Dead" .)
'utterly' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for all that I've seen before include "Avenue, walk or garden path" , "that's as many as there are" , "The works" , "Garden path (Fr.)" , "Garden passage between trees or bushes" .)