obligation

noun 0.807

mandatory

noun 0.687

compulsory

noun 0.673

obbligato

noun 0.661

bindingness

noun 0.658

necessitation

noun 0.656

obliging

noun 0.617

legal duty

noun 0.617

wajib

noun 0.617

onerousness

noun 0.609

indispensability

noun 0.595

necessity

noun 0.594

unavoidability

noun 0.592

inevitability

noun 0.584

compulsiveness

noun 0.584

optionality

noun 0.580

compulsion

noun 0.575

inevitableness

noun 0.569

imperative

noun 0.568

obsessionality

noun 0.565

requirement

noun 0.565

compulsivity

noun 0.563

noblesse oblige

noun 0.551

involuntariness

noun 0.546

dutifulness

noun 0.544

requisite

noun 0.542

necessitarian

noun 0.542

obsessiveness

noun 0.537

duty

noun 0.537

normativity

noun 0.534

debt obligation

noun 0.534

unavoidable

noun 0.534

opposability

noun 0.533

obedience

noun 0.529

imposition

noun 0.528

absoluteness

noun 0.528

voluntariness

noun 0.527

oblation

noun 0.524

insistence

noun 0.521

enforceability

noun 0.521

inexorability

noun 0.521

mandate

noun 0.520

demandingness

noun 0.520

prescriptiveness

noun 0.519

normativeness

noun 0.518

coerciveness

noun 0.516

obduracy

noun 0.516

dispensability

noun 0.514

responsibility

noun 0.513

abidingness

noun 0.511

peremptory

noun 0.511

compliancy

noun 0.510

compliance

noun 0.509

observance

noun 0.509

must

noun 0.508

liability

noun 0.504

officiousness

noun 0.503

impermissibility

noun 0.503

nonnegotiable

noun 0.501