deficient
adj 1: inadequate in amount or degree; "a deficient education";
"deficient in common sense"; "lacking in stamina";
"tested and found wanting" [syn: {lacking(p)}, {wanting(p)}]
2: of a quantity not able to fulfill a need or requirement;
"insufficient funds" [syn: {insufficient}] [ant: {sufficient}]
3: falling short of some prescribed norm; "substandard housing"
[syn: {inferior}, {substandard}]