(adj) not worth considering, Syn. trifling, paltry, Example:he considered the prize too paltry for the lives it must cost; piffling efforts; a trifling matter
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
a. [ Cf. F. négligible, négligeable. ] That may be neglected, disregarded, or left out of consideration; too small or unimportant to be worthy of notice. [ 1913 Webster ]
Within very negligible limits of error. Sir J. Herschel. [ 1913 Webster ]