impassable

adj 0.967

unpassable

adj 0.893

impenetrable

adj 0.712

inaccessible

adj 0.705

impermeable

adj 0.704

impervious

adj 0.697

insurmountable

adj 0.695

insuperable

adj 0.694

unnavigable

adj 0.688

impregnable

adj 0.679

unbridgeable

adj 0.677

unapproachable

adj 0.671

impassive

adj 0.667

impossible

adj 0.662

undoable

adj 0.653

nonpermeable

adj 0.649

unreachable

adj 0.642

inexpugnable

adj 0.641

impracticable

adj 0.639

imposable

adj 0.629

intractable

adj 0.624

inoperable

adj 0.623

impassionate

adj 0.616

unmovable

adj 0.616

unmasterable

adj 0.614

implacable

adj 0.611

immovable

adj 0.611

inescapable

adj 0.610

insolvable

adj 0.609

infeasible

adj 0.609

unconquerable

adj 0.608

inexpressible

adj 0.607

imped

adj 0.605

unobtainable

adj 0.604

unachievable

adj 0.604

incapable

adj 0.602

unimpeded

adj 0.601

untractable

adj 0.600

impalpable

adj 0.600

unmoveable

adj 0.599

unattainable

adj 0.596

insoluble

adj 0.596

inexorable

adj 0.594

unassailable

adj 0.592

unsearchable

adj 0.592

unchallengeable

adj 0.592

unamendable

adj 0.592

unable

adj 0.591

unsusceptible

adj 0.589

unplayable

adj 0.588

insusceptible

adj 0.587

incompossible

adj 0.586

imperforate

adj 0.585

uncatchable

adj 0.584

irresoluble

adj 0.584

unpayable

adj 0.584

impressible

adj 0.583

unamenable

adj 0.581

unresectable

adj 0.580

incompressible

adj 0.577

unthinkable

adj 0.577

unassimilable

adj 0.575

intolerable

adj 0.574

unimprovable

adj 0.572

irresolvable

adj 0.572

unstoppable

adj 0.571

irrigable

adj 0.571

incomprehensible

adj 0.570

insupportable

adj 0.569

unresolvable

adj 0.569

uncuttable

adj 0.568

invulnerable

adj 0.568

unutterable

adj 0.568

imperturbable

adj 0.568

impermissible

adj 0.568

uneatable

adj 0.568

irremovable

adj 0.568

intransigent

adj 0.567

unhittable

adj 0.567

utterable

adj 0.566

unavoidable

adj 0.565

unworkable

adj 0.563

unbuildable

adj 0.562

inviable

adj 0.562

unanswerable

adj 0.562

unwinnable

adj 0.561

ineffable

adj 0.561

ungraspable

adj 0.561

nonresectable

adj 0.561

indigestible

adj 0.560

infrangible

adj 0.560

indomitable

adj 0.560

undevelopable

adj 0.560

unappealable

adj 0.558

untameable

adj 0.557

inassimilable

adj 0.557

uninhabitable

adj 0.557

incomputable

adj 0.556

pathless

adj 0.556

inscrutable

adj 0.555