watertight

adj 0.811

gastight

adj 0.730

hermetically sealed

adj 0.713

hermetic

adj 0.687

leakproof

adj 0.680

tight

adj 0.669

airless

adj 0.640

sealed

adj 0.621

waterproof

adj 0.607

tamperproof

adj 0.604

sealing

adj 0.604

sealable

adj 0.592

finger tight

adj 0.590

skintight

adj 0.586

impregnable

adj 0.585

nonpermeable

adj 0.579

ironclad

adj 0.579

weatherproof

adj 0.574

bulletproof

adj 0.573

windproof

adj 0.573

impermeable

adj 0.568

impervious

adj 0.567

vacuum-packed

adj 0.562

aseptic

adj 0.562

dustproof

adj 0.558

insulated

adj 0.558

self-sealing

adj 0.557

soundproof

adj 0.553

secure

adj 0.551

foolproof

adj 0.550

rainproof

adj 0.548

tamper-evident

adj 0.547

lightproof

adj 0.545

taut

adj 0.544

sure-fire

adj 0.544

unassailable

adj 0.543

bombproof

adj 0.541

waterproofed

adj 0.539

fireproof

adj 0.539

unopened

adj 0.538

insulating

adj 0.537

accurate

adj 0.536

hard-and-fast

adj 0.535

heatproof

adj 0.534

impeccable

adj 0.534

childproof

adj 0.533

pressurized

adj 0.532

draught-free

adj 0.532

adiabatic

adj 0.532

adamantine

adj 0.531

strict

adj 0.531

compact

adj 0.530

drafty

adj 0.530

snug

adj 0.529

infallible

adj 0.528

unbreakable

adj 0.527

stringent

adj 0.526

impenetrable

adj 0.526

nonporous

adj 0.526

closed

adj 0.526

close-fitting

adj 0.523

unvented

adj 0.523

buttoned-up

adj 0.518

enclosed

adj 0.518

imperforate

adj 0.517

incompressible

adj 0.517

inclosed

adj 0.516

unimpeachable

adj 0.516

nonpressurized

adj 0.516

precise

adj 0.515

close-set

adj 0.515

fail-safe

adj 0.513

unerring

adj 0.513

word-perfect

adj 0.513

protected

adj 0.511

uncuttable

adj 0.511

sterile

adj 0.511

shatterproof

adj 0.510

fire-resistant

adj 0.510

water-resistant

adj 0.509

aerostatic

adj 0.509

flawless

adj 0.509

rustproof

adj 0.508

ringfenced

adj 0.507

stoppered

adj 0.507

icebox

adj 0.507

shut

adj 0.507

absolute

adj 0.505

inexpugnable

adj 0.505

unbreathable

adj 0.505

occlusive

adj 0.505

rigid

adj 0.505

unsinkable

adj 0.505

infrangible

adj 0.504

insulative

adj 0.504

ironbound

adj 0.504

well-fitted

adj 0.503

breathable

adj 0.503

leaky

adj 0.503

autoclave

adj 0.502