dys ‧ func ‧ tion ‧ al /dɪsˈfʌŋkʃ ə nəl/ BrE AmE adjective
[ Date: 1900-2000 ; Origin: dys- 'bad' (from Greek ) + functional ]
1 . not following the normal patterns of social behaviour, especially with the result that someone cannot behave in a normal way or have a satisfactory life:
dysfunctional family relationships
2 . not working properly or normally OPP functional