Adjective lacking has 2 senses
  1. lacking, missing, nonexistent, wanting - not existing; "innovation has been sadly lacking"; "character development is missing from the book"
    Antonym: present (indirect, via absent)
  2. deficient, lacking, wanting - inadequate in amount or degree; "a deficient education"; "deficient in common sense"; "lacking in stamina"; "tested and found wanting"
    Antonym: adequate (indirect, via inadequate)
,Verb lack has 1 sense
  1. miss, lack - be without; "This soup lacks salt"; "There is something missing in my jewellery box!"
    Derived form: noun lack1
    Sample sentences:
    Somebody ----s something
    Something ----s something
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