Synonyms to in duty bound

obligated, affianced, answerable for, assured, beholden, beholden to, betrothed, bound, bounden, bounden to, chargeable, committed, compromised, contracted, duty-bound, engaged, guaranteed, indebted to, intended, liable, obligate, obliged, obliged to, pledged, plighted, promised, responsible, saddled, sworn, tied, under obligation, underwritten, warranted, acknowledging, appreciative, cognizant of, compelled, crediting, forced, grateful, indebted, made, much obliged, required, sensible, thankful, in debt, Highland fling, absolute, adjoin, affiliate, affiliated, allied, and jump, apodictic, apprenticed, art