obligatorily
As a requirement
Obligatorily means as a matter of obligation or requirement—done because it must be done rather than by choice.
The adverb form of obligatory, it describes actions performed out of duty or compulsion: He obligatorily attended the meeting, though he had no interest in the topic.
The word is formal and somewhat awkward; speakers often prefer "as required" or "out of obligation."
Without deliberate intent
- unavoidablyWithout possibility of prevention
- necessarilyAs an unavoidable consequence
- inescapablyWithout possibility of avoidance
- irresistiblyBeyond power to refuse
forcibly · coercively · ineluctably · perforce · unwillingly · automatically · instinctively
Required by rule
- compulsoryRequired, not optional
- requiredNeeded by rule
- prerequisiteRequired prior condition
- essentialFundamentally necessary
necessary · binding · enforced · prescribed · statutory · regulatory · imperative · indispensable
State of being answerable
- commitmentFirm pledge to act
- requirementMandatory condition to fulfill
- expectationBelief about future outcomes
- burdenOppressive weight or duty
charge · function · role · assignment · calling · accountability · compliance · adherence
involuntarily
Without deliberate intent
- unavoidablyWithout possibility of prevention
- necessarilyAs an unavoidable consequence
- inescapablyWithout possibility of avoidance
irresistibly · forcibly · coercively · ineluctably · perforce · unwillingly · automatically · instinctively
mandatory
Required by rule
- compulsoryRequired, not optional
- requiredNeeded by rule
- prerequisiteRequired prior condition
essential · necessary · binding · enforced · prescribed · statutory · regulatory · imperative · indispensable · nonnegotiable
responsibility
State of being answerable
- commitmentFirm pledge to act
- requirementMandatory condition to fulfill
- expectationBelief about future outcomes
burden · charge · function · role · assignment · calling · accountability · compliance · adherence · fulfillment
- without enthusiasmhalfheartedly, listlessly, apathetically, indifferently, uninspiredly
obligatorilyoptionally
As a choice, not requirement
voluntarily · electively · freely · by choice · permissively
obliging, obligation, oblige, obligatory, obliged, obligated, obligate, obliges, obligating