deficient, lacking(p), wanting(p)(adj)

inadequate in amount or degree

"a deficient education"; "deficient in common sense"; "lacking in stamina"; "tested and found wanting"

lacking, absent, missing, wanting(adj)

nonexistent

"the thumb is absent"; "her appetite was lacking"

lacking(adjective)ˈækɪŋ

in amounts that are too small or do not exist

A community spirit is sadly lacking in this area.; a performance lacking in originality

Lacking(u)

of Lack