obligational

adj 0.885

obligate

adj 0.867

obligated

adj 0.828

mandatory

adj 0.791

compulsory

adj 0.786

nonobligatory

adj 0.756

required

adj 0.708

wajib

adj 0.706

obliged

adj 0.704

necessary

adj 0.690

mandated

adj 0.687

requisite

adj 0.681

unavoidable

adj 0.661

mandative

adj 0.646

essential

adj 0.634

imperative

adj 0.633

obliging

adj 0.623

facultative

adj 0.621

inevitable

adj 0.619

indispensable

adj 0.614

de rigueur

adj 0.612

ineluctable

adj 0.610

optional

adj 0.606

must-have

adj 0.589

necessitous

adj 0.587

necessitarian

adj 0.586

unrequired

adj 0.585

nonelective

adj 0.579

nonessential

adj 0.578

prerequisite

adj 0.573

omissible

adj 0.572

inescapable

adj 0.571

peremptory

adj 0.569

onerous

adj 0.567

nonnegotiable

adj 0.566

needful

adj 0.565

forced

adj 0.562

liable

adj 0.554

conditional

adj 0.549

rogatory

adj 0.549

evitable

adj 0.549

contingent

adj 0.548

nonignorable

adj 0.548

unessential

adj 0.547

unconditional

adj 0.544

supererogatory

adj 0.543

nullable

adj 0.538

forcing

adj 0.538

involuntary

adj 0.537

compulsive

adj 0.537

exigible

adj 0.537

imposable

adj 0.536

needed

adj 0.535

obviative

adj 0.535

preemptory

adj 0.533

obsessional

adj 0.532

exigent

adj 0.532

customary

adj 0.530

legally binding

adj 0.530

undeniable

adj 0.527

inessential

adj 0.527

compelling

adj 0.526

forcible

adj 0.525

assertoric

adj 0.521

owing

adj 0.519

voluntary

adj 0.518

of the essence

adj 0.518

constrained

adj 0.517

stipulate

adj 0.517

unbidden

adj 0.517

payable

adj 0.515

dispensable

adj 0.515

implicit

adj 0.511

stipulated

adj 0.510

obedient

adj 0.510

contractual

adj 0.509

demandable

adj 0.509

inherent

adj 0.509

nonabsolute

adj 0.508

coercive

adj 0.508

demanding

adj 0.508

unnecessary

adj 0.507

precatory

adj 0.507

unconditioned

adj 0.507

obeisant

adj 0.506

dependent

adj 0.505

inalienable

adj 0.505

promissory

adj 0.504

impositional

adj 0.504

elective

adj 0.503

specified

adj 0.503

indisputable

adj 0.502

guaranteed

adj 0.501

paramount

adj 0.501

constitutive

adj 0.501

void

adj 0.501

obsessive

adj 0.500