Lacking of' is a phrase used to describe a situation where something is missing or absent. The crossword solutions for the term 'lacking, with 'of'' are BEREFT (6 letters), DEVOID (6 letters), SHORT (5 letters), and INWANT (6 letters). BEREFT means to be deprived of something, usually through misfortune or tragedy. DEVOID means to be completely empty or lacking of something. SHORT means to be insufficient in amount or quantity. INWANT means to be in need of something.