lacking

(verb) be without. Synonyms: miss, lack. Examples: "This soup lacks salt." "There is something missing in my jewelry box!."

(adj) inadequate in amount or degree. Synonyms: deficient, lacking(predicate), wanting(predicate). Examples: "A deficient education." "Deficient in common sense." "Lacking in stamina." "Tested and found wanting."

(adj) nonexistent. Synonyms: absent, missing, wanting. Examples: "The thumb is absent." "Her appetite was lacking."