arduousness

noun 0.779

rigorousness

noun 0.673

overstrain

noun 0.628

strictness

noun 0.627

exertion

noun 0.621

effort

noun 0.617

stringency

noun 0.617

rigour

noun 0.610

gruelling

noun 0.607

intensity

noun 0.607

assiduousness

noun 0.604

earnestness

noun 0.600

vigour

noun 0.599

industriousness

noun 0.599

sternness

noun 0.598

sturdiness

noun 0.597

onerousness

noun 0.596

studiousness

noun 0.593

tediousness

noun 0.588

stiffness

noun 0.583

stridency

noun 0.579

demandingness

noun 0.579

forcefulness

noun 0.575

strength

noun 0.574

overexertion

noun 0.572

endurance

noun 0.570

straining

noun 0.562

tensity

noun 0.561

staunchness

noun 0.559

seriousness

noun 0.558

diligence

noun 0.554

stoutness

noun 0.552

zealousness

noun 0.551

assiduity

noun 0.547

grievousness

noun 0.547

toughness

noun 0.545

hardness

noun 0.544

heaviness

noun 0.544

stress

noun 0.541

tenseness

noun 0.539

tenaciousness

noun 0.538

hardship

noun 0.538

tirelessness

noun 0.537

spiritedness

noun 0.535

harshness

noun 0.535

drudgery

noun 0.531

hardihood

noun 0.531

strain energy

noun 0.531

painstaking

noun 0.530

intensiveness

noun 0.530

ardour

noun 0.529

drivenness

noun 0.529

starkness

noun 0.526

intentness

noun 0.525

steepness

noun 0.524

heartiness

noun 0.524

heavy lifting

noun 0.523

stress accent

noun 0.522

struggle

noun 0.520

rigidness

noun 0.520

strain

noun 0.520

extremeness

noun 0.519

relentlessness

noun 0.519

vehemence

noun 0.518

hustle

noun 0.518

straitness

noun 0.517

earnest

noun 0.515

fastidiousness

noun 0.515

ruggedness

noun 0.515

tiring

noun 0.514

hard war

noun 0.512

steadfastness

noun 0.510

rigidity

noun 0.510

firmness

noun 0.510

graveness

noun 0.509

effortlessness

noun 0.508

conscientiousness

noun 0.508

fervency

noun 0.507

weariness

noun 0.506

stringiness

noun 0.505

burdensomeness

noun 0.505

muscularity

noun 0.504

exhaustion

noun 0.504

tautness

noun 0.503

thoroughness

noun 0.503

obstreperousness

noun 0.503

tightness

noun 0.502

sturdy

noun 0.502

briskness

noun 0.502

duress

noun 0.502

overwork

noun 0.501

eyestrain

noun 0.501

ambitiousness

noun 0.501

busyness

noun 0.501