sure thing

noun 0.682

certitude

noun 0.669

foregone conclusion

noun 0.651

dead set

noun 0.633

no two ways about it

noun 0.619

assured

noun 0.613

guarantee

noun 0.611

indubitable

noun 0.604

definite

noun 0.598

sureness

noun 0.575

surety

noun 0.574

no-brainer

noun 0.574

certainty

noun 0.573

safe pair of hands

noun 0.559

dead ringer

noun 0.556

infallible

noun 0.553

absolute right

noun 0.550

assuredness

noun 0.545

guaranty

noun 0.545

bombproof

noun 0.533

definitive

noun 0.533

certificate

noun 0.530

determinate

noun 0.529

certifiable

noun 0.527

fail-safe

noun 0.525

assurance

noun 0.525

definiteness

noun 0.523

probable

noun 0.520

unassailable

noun 0.519

absolute

noun 0.518

dead run

noun 0.517

slam dunk

noun 0.513

reliable

noun 0.512

predicable

noun 0.512

yakin

noun 0.510

inevitability

noun 0.508

certification

noun 0.508

true blue

noun 0.508

cert

noun 0.505