stumbling block

noun 0.962

stumbling

noun 0.768

stumbling stone

noun 0.749

stumble

noun 0.699

roadblock

noun 0.638

hindrance

noun 0.618

obstacle

noun 0.617

impediment

noun 0.611

stumper

noun 0.602

mental block

noun 0.589

stepping stone

noun 0.577

stymie

noun 0.565

hurdle

noun 0.560

block system

noun 0.558

blocker

noun 0.557

misstep

noun 0.556

obstruction

noun 0.553

blockage

noun 0.553

sticking point

noun 0.552

blem

noun 0.551

block party

noun 0.542

obstructive

noun 0.537

staggering

noun 0.536

stagger

noun 0.535

stump

noun 0.534

blocking

noun 0.528

block

noun 0.527

fumbling

noun 0.525

blunder

noun 0.523

stammer

noun 0.522

boundstone

noun 0.522

staggerer

noun 0.522

deal breaker

noun 0.519

stob

noun 0.519

sticky wicket

noun 0.518

obstructiveness

noun 0.516

obstructionism

noun 0.515

obstructionist

noun 0.514

hampering

noun 0.513

interblock

noun 0.512

block design

noun 0.512

barrier

noun 0.511

setback

noun 0.511

troubling

noun 0.510

pitfall

noun 0.508

hurdles

noun 0.507

stubborn

noun 0.505

stalling

noun 0.503

unblocking

noun 0.503

hobble

noun 0.502

backstop

noun 0.502