detachment detachment /diːˈtætʃmənt/

noun

1. () The act of releasing from an attachment or connection  ( detachment , disengagement )
   the act of releasing from an attachment or connection
   
2. () Avoiding emotional involvement  ( withdrawal , detachment )
   avoiding emotional involvement
   
3. Coming apart  ( detachment , breakup , separation )
   coming apart
     The couple announced their separation, ending their marriage.
   The couple announced their separation, ending their marriage.
   
4. A small unit of troops of special composition  ( detachment )
   a small unit of troops of special composition
   
5. The state of being isolated or detached  ( detachment , insularism , insularity , insulation )
   the state of being isolated or detached
    The insulation of England was preserved by the English Channel
   the insulation of England was preserved by the English Channel