need·less 
/ˈni:dləs/ adjective
/ˈni:dləs/ adjective [more needless; most needless] : not needed or necessary — used to describe something bad that did not have to happen ▪ needless [=unnecessary] waste ▪ needless human suffering ▪ a needless death
needless to say
— used to say that the statement you are making is obvious ▪ The two candidates were equally popular. Needless to say [=of course, obviously], the election was very close.
— need·less·ly adverb
▪ needlessly [=unnecessarily] complicated instructions
▪ needlessly [=unnecessarily] complicated instructions
— need·less·ness noun [noncount]
▪ the needlessness of his death
▪ the needlessness of his death
