meaningless

adj.

[1]	empty , nonmeaningful , hollow , vacuous , unsubstantial , absurd , silly , foolish , fatuous , asinine , ridiculous , preposterous , nonsensical
[2]	ineffective , ineffectual , inefficacious , bootless , unavailing , to no avail , trivial , nugatory , trifling , puny , paltry , worthless , not worth anything/a straw/a rap , valueless , inconsequential , unimportant , of no moment , insubstantial , vain , pointless , senseless , purposeless , undirected , irrelevant , insignificant