impermeable

adj 0.819

nonpermeable

adj 0.758

impenetrable

adj 0.754

impregnable

adj 0.746

unsusceptible

adj 0.735

insusceptible

adj 0.728

invulnerable

adj 0.718

impassible

adj 0.697

nonporous

adj 0.686

impassable

adj 0.683

permeable

adj 0.669

imperceptive

adj 0.661

invincible

adj 0.652

inexpugnable

adj 0.650

imperturbable

adj 0.649

inaccessible

adj 0.644

insoluble

adj 0.644

imperceptible

adj 0.644

waterproof

adj 0.643

insensible

adj 0.639

insensitive

adj 0.635

insuperable

adj 0.634

pervious

adj 0.633

unperceptive

adj 0.632

impressible

adj 0.632

indestructible

adj 0.628

imperishable

adj 0.627

resistant

adj 0.625

unpassable

adj 0.623

unapproachable

adj 0.623

rainproof

adj 0.620

insurmountable

adj 0.620

impalpable

adj 0.620

impassive

adj 0.617

inexorable

adj 0.616

irrigable

adj 0.614

imperforate

adj 0.611

unperceiving

adj 0.608

unassailable

adj 0.607

weatherproof

adj 0.603

inscrutable

adj 0.603

unresponsive

adj 0.603

permeant

adj 0.602

adamantine

adj 0.601

implacable

adj 0.600

unbreakable

adj 0.600

infrangible

adj 0.598

unyielding

adj 0.596

watertight

adj 0.595

incompressible

adj 0.595

unprotectable

adj 0.593

irremovable

adj 0.592

oblivious

adj 0.592

bulletproof

adj 0.591

immovable

adj 0.590

unhittable

adj 0.590

unmovable

adj 0.589

water-resistant

adj 0.587

intractable

adj 0.586

indomitable

adj 0.583

unperceived

adj 0.582

intransigent

adj 0.579

untouchable

adj 0.579

unconquerable

adj 0.578

indelible

adj 0.578

unsinkable

adj 0.578

irreversible

adj 0.576

undeterrable

adj 0.576

penetrable

adj 0.576

insolvable

adj 0.575

inviolable

adj 0.575

refractory

adj 0.575

unmoveable

adj 0.574

inescapable

adj 0.572

unreachable

adj 0.571

untractable

adj 0.571

irresistible

adj 0.568

airtight

adj 0.567

incorrigible

adj 0.567

inert

adj 0.567

obdurate

adj 0.567

undatable

adj 0.567

nonabsorbent

adj 0.566

indissoluble

adj 0.565

immiscible

adj 0.565

impertinent

adj 0.565

immutable

adj 0.565

immune

adj 0.565

irrecoverable

adj 0.564

irremediable

adj 0.563

irresoluble

adj 0.563

irrespective

adj 0.562

undefeatable

adj 0.562

infallible

adj 0.561

incorruptible

adj 0.560

unbridgeable

adj 0.560

undeterred

adj 0.560

ineffaceable

adj 0.560

impossible

adj 0.559

nontransparent

adj 0.559