Unnecessary (11)
'unnecessary' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for superfluous that I've seen before include "Redundant, unnecessary" , "left over?" , "Not needed" , "Extra to requirements" .)
(Other definitions for avoidable that I've seen before include "Such a mistake, say, should not have happened" , "Not necessary" .)
'unnecessary' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for needless that I've seen before include "Unwanted" , "Without reason" , "luxury" , "Gratuitous" , "Uncalled-for" .)
(Other definitions for wasted that I've seen before include "Squandered or weakened" , "Squandered, dissipated" , "Used to no purpose" , "Misspent" , "Not used to good advantage" .)