Source : Webster's Revised Unabridged Dictionary (1913)

Indebted \In*debt"ed\, a.
   1. Brought into debt; being under obligation; held to payment
      or requital; beholden.

            By owing, owes not, but still pays, at once Indebted
            and discharged.                       --Milton.

   2. Placed under obligation for something received, for which
      restitution or gratitude is due; as, we are indebted to
      our parents for their care of us in infancy; indebted to
      friends for help and encouragement. --Cowper.

Indebt \In*debt"\, v. t. [imp. & p. p. {Indebted}; p. pr. & vb.
   n. {Indebting}.] [OE. endetten, F. endetter; pref. en- (L.
   in) + F. dette debt. See {Debt}.]
   To bring into debt; to place under obligation; -- chiefly
   used in the participle indebted.

         Thy fortune hath indebted thee to none.  --Daniel.

Source : WordNet®

indebted
     adj 1: under a legal obligation to someone [syn: {indebted(p)}]
     2: owing gratitude or recognition to another for help or favors
        etc [syn: {indebted(p)}]