rareness

noun 0.634

rare

noun 0.619

rarity

noun 0.586

deflation

noun 0.549

refraction

noun 0.543

negative pressure

noun 0.542

compression wave

noun 0.537

sparsity

noun 0.534

partial vacuum

noun 0.533

exhalation

noun 0.529

reexpansion

noun 0.527

rare earth

noun 0.526

underpressure

noun 0.524

depressurization

noun 0.517

sparseness

noun 0.516

cavitation

noun 0.515

vacuum

noun 0.512

infrequency

noun 0.511

effusion

noun 0.510

dispersion

noun 0.508

vacuity

noun 0.508

diffraction

noun 0.508

uncommonness

noun 0.507

desaturation

noun 0.503

compressibility

noun 0.501