Fruitless (12)
'fruitless' is the definition.
(similar in meaning)
This is all the clue.
(Another definition for unproductive that I've seen is " Sterile".)
'fruitless' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for abortive that I've seen before include "failing to produce desired effect?" , "Unsuccessful, ending in failure" , "not at all successful" , "Failing because done too soon" , "Unsuccessful, fruitless" .)
'fruitless' is the definition.
(I know that fruitless can be written as vain)
This is all the clue.
(Other definitions for vain that I've seen before include "without success" , "Swollen-headed" , "thoughtless" , "Conceited or unsuccessful" , "Pointless; narcissistic" .)
'fruitless' is the definition.
(I know that fruitless can be written as futile)
This is all the clue.
(Other definitions for futile that I've seen before include "Useless or vain" , "Ineffectual, unavailing" , "Ineffectual, a waste of time" , "Trifling and ineffectual" , "Useless, producing no results" .)