\setuplayout[width=1.5cm] \showframe

\starttext

    \setbreakpoints[compound]

    \installbreakpoint [compound] [-] [nleft=3,nright=3,type=5,left=,right={-},middle={-}]
    \installbreakpoint [compound] [(] [nleft=3,nright=3,type=5,left=,right={(-},middle={(}]
    \installbreakpoint [compound] [)] [nleft=3,nright=3,type=5,left={-)},right=,middle={)}]

    composed-word\par
    composed(word)\par

\stoptext

