arduous

adj 0.785

toilsome

adj 0.779

labor-intensive

adj 0.750

laboured

adj 0.747

painstaking

adj 0.727

tedious

adj 0.690

sedulous

adj 0.679

strenuous

adj 0.678

hardworking

adj 0.658

industrious

adj 0.648

effortful

adj 0.646

gruelling

adj 0.643

assiduous

adj 0.633

wearisome

adj 0.631

burdensome

adj 0.627

work-intensive

adj 0.625

ponderous

adj 0.625

diligent

adj 0.623

tiresome

adj 0.614

cumbersome

adj 0.611

onerous

adj 0.602

tiring

adj 0.593

exhausting

adj 0.592

lengthy

adj 0.589

difficult

adj 0.586

backbreaking

adj 0.584

laborsaving

adj 0.582

rigorous

adj 0.582

cumbrous

adj 0.568

torturous

adj 0.563

hardscrabble

adj 0.554

long-winded

adj 0.552

meticulous

adj 0.551

demanding

adj 0.548

laboratorial

adj 0.547

painful

adj 0.541

plodding

adj 0.541

costly

adj 0.539

long-drawn

adj 0.533

hard-won

adj 0.533

studious

adj 0.533

tortuous

adj 0.532

intricate

adj 0.531

hard put

adj 0.528

elaborate

adj 0.526

weary

adj 0.524

overworked

adj 0.523

wordy

adj 0.523

tireless

adj 0.521

troublesome

adj 0.517

languorous

adj 0.517

conscientious

adj 0.516

lumbering

adj 0.516

exacting

adj 0.515

slavish

adj 0.514

fastidious

adj 0.513

protracted

adj 0.513

complicated

adj 0.511

vigorous

adj 0.510

slothful

adj 0.508

dolorous

adj 0.506

untiring

adj 0.506

grievous

adj 0.505

stressful

adj 0.503

taxing

adj 0.503

draggy

adj 0.502