infrasonic

adj 0.712

supersonic

adj 0.707

transonic

adj 0.704

subluminal

adj 0.664

subvisual

adj 0.632

subliminal

adj 0.615

hypersonic

adj 0.613

ultraslow

adj 0.612

subtonic

adj 0.603

subharmonic

adj 0.600

subsynchronous

adj 0.592

sonic

adj 0.587

subatmospheric

adj 0.581

subbottom

adj 0.580

submarine

adj 0.577

ultrasonic

adj 0.573

subdued

adj 0.563

subnormal

adj 0.561

ultralow

adj 0.559

subvocal

adj 0.553

sublunar

adj 0.552

sublaminar

adj 0.550

low and slow

adj 0.546

low-pitched

adj 0.542

subatomic

adj 0.541

subconscious

adj 0.541

sotto voce

adj 0.539

subterranean

adj 0.539

submachine

adj 0.539

antisubmarine

adj 0.539

low-end

adj 0.539

supraliminal

adj 0.538

subsurface

adj 0.537

subwavelength

adj 0.534

sublingual

adj 0.533

slow

adj 0.532

supercritical

adj 0.532

submedian

adj 0.532

underslung

adj 0.531

subaltern

adj 0.530

undersea

adj 0.529

subscript

adj 0.528

subpar

adj 0.525

subordinate

adj 0.524

superfluid

adj 0.523

subminimum

adj 0.523

sublunary

adj 0.521

subaqueous

adj 0.521

low

adj 0.520

subjacent

adj 0.518

superluminal

adj 0.517

underground

adj 0.517

subinhibitory

adj 0.516

superspeed

adj 0.515

low-key

adj 0.514

subaverage

adj 0.512

subintimal

adj 0.512

sonant

adj 0.511

suborbital

adj 0.510

inaudible

adj 0.510

undermost

adj 0.509

bass

adj 0.507

submersible

adj 0.505

subterraneous

adj 0.505

ultracold

adj 0.505

acoustic

adj 0.504

quiet

adj 0.504

down

adj 0.503

underwater

adj 0.503

slow-paced

adj 0.503

ultralight

adj 0.501

soundless

adj 0.500