want ‧ ing /ˈwɒntɪŋ $ ˈwɒːn-, ˈwɑːn-/ BrE AmE adjective [not before noun] formal
something that is wanting lacks or misses something that it needs or something that you expect it to have:
Their security procedures were found wanting.
wanting in
They were skilled, but wanting in discipline.
A certain humanity is wanting in big cities.