guaranteed

adj 0.729

sure as shooting

adj 0.725

foolproof

adj 0.714

infallible

adj 0.700

no-fail

adj 0.684

unerring

adj 0.683

fail-safe

adj 0.682

sure-enough

adj 0.672

sure-handed

adj 0.671

undoubted

adj 0.664

unfailing

adj 0.657

assured

adj 0.653

certain

adj 0.642

definite

adj 0.641

indubitable

adj 0.639

tried and true

adj 0.636

unquestionable

adj 0.634

reliable

adj 0.622

bulletproof

adj 0.622

surefooted

adj 0.620

bombproof

adj 0.616

undoubtable

adj 0.614

proven

adj 0.611

irrefutable

adj 0.609

unmistaken

adj 0.604

definitive

adj 0.602

indisputable

adj 0.601

hard-and-fast

adj 0.599

apodictic

adj 0.596

unassailable

adj 0.593

unmistakable

adj 0.593

ironclad

adj 0.588

confirmatory

adj 0.587

undeniable

adj 0.583

dead set

adj 0.583

odds-on

adj 0.581

sure

adj 0.581

unshakable

adj 0.578

100 percent

adj 0.577

faultless

adj 0.577

secure

adj 0.576

well-tried

adj 0.576

one hundred percent

adj 0.573

incontestable

adj 0.572

clear cut

adj 0.572

free-fire

adj 0.572

dependable

adj 0.568

incontrovertible

adj 0.567

indefeasible

adj 0.565

unequivocal

adj 0.565

confirmable

adj 0.565

conclusive

adj 0.564

unimpeachable

adj 0.564

unbeatable

adj 0.564

time-tested

adj 0.563

unfaltering

adj 0.562

inarguable

adj 0.559

good as gold

adj 0.558

cocksure

adj 0.558

true-false

adj 0.557

determinate

adj 0.556

true blue

adj 0.552

confident

adj 0.551

unarguable

adj 0.550

watertight

adj 0.550

safe and sound

adj 0.550

absolute

adj 0.550

undefeatable

adj 0.548

trusty

adj 0.548

apodeictic

adj 0.548

safe

adj 0.547

copper-bottomed

adj 0.545

hard-set

adj 0.545

airtight

adj 0.544

set in stone

adj 0.542

dead on

adj 0.540

unfalsifiable

adj 0.539

unswerving

adj 0.537

undisputed

adj 0.535

trusted

adj 0.535

word-perfect

adj 0.534

cut and dried

adj 0.533

proof

adj 0.532

provable

adj 0.531

well-fixed

adj 0.531

trustworthy

adj 0.531

nonguaranteed

adj 0.531

down pat

adj 0.530

undoubting

adj 0.529

riskless

adj 0.528

verifiable

adj 0.528

flawless

adj 0.528

out-and-out

adj 0.527

ascertainable

adj 0.527

probable

adj 0.526

veritable

adj 0.526

undefeated

adj 0.524

inevitable

adj 0.524

tamperproof

adj 0.524

true

adj 0.524