dys‧func‧tion‧al /dɪsˈfʌŋkʃənəl/ 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 Antonym : functional

[TahlilGaran] Dictionary of Contemporary English ▲