stumblingblock

noun 0.962

stumbling stone

noun 0.745

stumbling

noun 0.734

stumble

noun 0.662

obstacle

noun 0.655

roadblock

noun 0.654

hindrance

noun 0.650

impediment

noun 0.635

mental block

noun 0.603

stepping stone

noun 0.603

hurdle

noun 0.594

sticking point

noun 0.593

stumper

noun 0.584

obstruction

noun 0.571

blockage

noun 0.563

barrier

noun 0.556

stymie

noun 0.554

block system

noun 0.550

blocker

noun 0.548

deal breaker

noun 0.546

pitfall

noun 0.544

sticky wicket

noun 0.541

hurdles

noun 0.540

blem

noun 0.539

misstep

noun 0.535

obstructive

noun 0.534

fly in the ointment

noun 0.534

hampering

noun 0.534

block party

noun 0.532

thorn in the flesh

noun 0.529

obstructiveness

noun 0.525

blocking

noun 0.524

boundstone

noun 0.523

stump

noun 0.521

troubling

noun 0.520

stagger

noun 0.520

brick wall

noun 0.520

staggering

noun 0.519

block

noun 0.516

obstructionism

noun 0.515

language barrier

noun 0.512

obstructionist

noun 0.509

problematic

noun 0.508

setback

noun 0.508

stammer

noun 0.507

bugbear

noun 0.506

stubborn

noun 0.504

trouble spot

noun 0.504

fumbling

noun 0.504

impasse

noun 0.503

barricade

noun 0.503

hobble

noun 0.502

block design

noun 0.501

temptation

noun 0.501

blunder

noun 0.501