inexpugnable

adj 0.837

invulnerable

adj 0.794

unassailable

adj 0.776

impenetrable

adj 0.768

invincible

adj 0.766

impervious

adj 0.746

undefeatable

adj 0.734

unconquerable

adj 0.732

infrangible

adj 0.719

unbeatable

adj 0.712

indestructible

adj 0.710

inviolable

adj 0.708

indomitable

adj 0.703

unbreakable

adj 0.703

insuperable

adj 0.699

insusceptible

adj 0.689

insurmountable

adj 0.688

impassable

adj 0.684

unsusceptible

adj 0.680

bulletproof

adj 0.679

impassible

adj 0.679

unshakable

adj 0.676

impermeable

adj 0.669

unimpeachable

adj 0.665

unchallengeable

adj 0.657

unprotectable

adj 0.656

indefeasible

adj 0.653

ironclad

adj 0.651

bombproof

adj 0.647

infallible

adj 0.646

indefensible

adj 0.644

unhittable

adj 0.638

unpassable

adj 0.636

uncuttable

adj 0.635

irrefutable

adj 0.633

irresistible

adj 0.629

unstoppable

adj 0.627

inexorable

adj 0.626

implacable

adj 0.625

incontestable

adj 0.624

adamantine

adj 0.622

inaccessible

adj 0.619

inviolate

adj 0.618

inescapable

adj 0.615

unsinkable

adj 0.615

irrebuttable

adj 0.615

incorruptible

adj 0.613

unvanquished

adj 0.613

irrefragable

adj 0.612

unimprovable

adj 0.612

untenable

adj 0.609

uncatchable

adj 0.608

indubitable

adj 0.607

unbeaten

adj 0.607

resistible

adj 0.606

impeccable

adj 0.606

undoable

adj 0.606

unmovable

adj 0.602

unapproachable

adj 0.601

shatterproof

adj 0.601

intractable

adj 0.601

vincible

adj 0.601

nonpermeable

adj 0.601

undeterrable

adj 0.601

inimitable

adj 0.601

unwinnable

adj 0.599

incontrovertible

adj 0.599

imperturbable

adj 0.599

imperishable

adj 0.599

undefeated

adj 0.598

impressible

adj 0.597

immovable

adj 0.597

impossible

adj 0.596

unreachable

adj 0.595

tamperproof

adj 0.593

fortresslike

adj 0.593

unamendable

adj 0.593

untouchable

adj 0.592

watertight

adj 0.590

unthinkable

adj 0.589

immutable

adj 0.589

inarguable

adj 0.588

inscrutable

adj 0.587

unappealable

adj 0.586

indissoluble

adj 0.586

unconquered

adj 0.585

insolvable

adj 0.585

airtight

adj 0.585

unassailed

adj 0.583

unanswerable

adj 0.582

uneatable

adj 0.582

incompressible

adj 0.580

immune

adj 0.580

unfalsifiable

adj 0.579

undatable

adj 0.579

imitable

adj 0.579

assailable

adj 0.579

unyielding

adj 0.578

indefatigable

adj 0.578

iron-hearted

adj 0.577