I. ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ adjective
Etymology: lack (I) + luster (n.)
: lacking in sheen, radiance, or vitality : dull , uninspired
looked into space with lackluster eyes — Bram Stoker
the town has lackluster dirt streets and plenty of stray dogs — W.A.Krauss
eager new recruits too often are beaten down to the hangdog, lackluster average — Bennett Cerf
II. noun
: absence or want of luster
attempts to justify the lackluster of psychoanalytic biography — R.M.Wendlinger