top secret

adj 0.757

classified

adj 0.756

top-secret

adj 0.747

hush-hush

adj 0.742

secretive

adj 0.735

secret

adj 0.725

nonpublic

adj 0.691

undisclosed

adj 0.676

private

adj 0.670

confiding

adj 0.667

nonprivate

adj 0.663

clandestine

adj 0.655

encrypted

adj 0.652

confident

adj 0.636

sub rosa

adj 0.635

unpublicized

adj 0.630

discreet

adj 0.625

covert

adj 0.619

secure

adj 0.619

incognito

adj 0.617

privy

adj 0.614

undivulged

adj 0.612

confessional

adj 0.608

confined

adj 0.606

nonclassified

adj 0.602

privately held

adj 0.599

surreptitious

adj 0.596

secluded

adj 0.596

unconfessed

adj 0.595

unclassified

adj 0.595

protected

adj 0.594

sealed

adj 0.593

hidden

adj 0.584

closemouthed

adj 0.583

proprietary

adj 0.582

unrevealing

adj 0.580

closeted

adj 0.578

cryptic

adj 0.578

unconfident

adj 0.577

closely held

adj 0.577

anonymized

adj 0.575

unpublished

adj 0.575

unspoken

adj 0.574

stealth

adj 0.571

withheld

adj 0.569

seclusive

adj 0.568

hushed

adj 0.567

concealable

adj 0.567

disclosed

adj 0.564

conspiratorial

adj 0.564

censored

adj 0.563

restricted

adj 0.563

undercover

adj 0.561

nonconfessional

adj 0.560

confining

adj 0.560

tacit

adj 0.559

reticent

adj 0.557

unlisted

adj 0.555

esoteric

adj 0.554

cloaked

adj 0.554

anonymous

adj 0.551

cloistral

adj 0.550

shy

adj 0.549

double-blind

adj 0.548

quiet

adj 0.546

underconfident

adj 0.546

unrevealed

adj 0.545

obscure

adj 0.543

diffident

adj 0.543

enclosed

adj 0.542

inviolable

adj 0.540

hermetic

adj 0.538

reserved

adj 0.538

indiscreet

adj 0.538

mysterious

adj 0.538

occult

adj 0.537

taboo

adj 0.537

cryptographic

adj 0.536

closed

adj 0.536

reclusive

adj 0.535

nontransparent

adj 0.534

semiprivate

adj 0.533

diplomatic

adj 0.532

sequestered

adj 0.532

silent

adj 0.530

under cover

adj 0.530

insecure

adj 0.529

unencrypted

adj 0.528

nonprivileged

adj 0.528

redacted

adj 0.528

stealthy

adj 0.527

sensitive

adj 0.526

unsaid

adj 0.526

shielded

adj 0.526

disclosive

adj 0.526

guarded

adj 0.526

zero-knowledge

adj 0.525

safe

adj 0.525

closet

adj 0.524

privative

adj 0.523