indebted

indebted is an   Adverb

Definition:

[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.

Synonyms: