problemo

noun 0.979

problem

noun 0.780

problematic

noun 0.662

nonproblem

noun 0.660

roble

noun 0.644

open problem

noun 0.615

trouble

noun 0.610

no problem

noun 0.604

decision problem

noun 0.598

problem space

noun 0.589

subproblem

noun 0.585

dilemma

noun 0.584

scientific problem

noun 0.583

issue

noun 0.581

difficulty

noun 0.571

eigenproblem

noun 0.564

puzzle

noun 0.556

predicament

noun 0.552

bother

noun 0.552

punto

noun 0.544

bug

noun 0.537

quaestio

noun 0.535

crisis

noun 0.532

troubler

noun 0.531

question

noun 0.526

problem play

noun 0.526

dentro

noun 0.526

incognita

noun 0.525

troubling

noun 0.524

proposita

noun 0.524

figura

noun 0.524

in difficulties

noun 0.524

prog

noun 0.523

motivo

noun 0.523

conundrum

noun 0.521

complication

noun 0.520

troubleshooting

noun 0.519

challenge

noun 0.518

modello

noun 0.518

bomba

noun 0.518

imbroglio

noun 0.515

impresa

noun 0.514

que

noun 0.512

hassle

noun 0.511

preso

noun 0.511

teme

noun 0.509

riddle

noun 0.508

quandary

noun 0.507

probable

noun 0.507

puzzling

noun 0.507

general issue

noun 0.507

proposition

noun 0.506

malo

noun 0.505

dispute

noun 0.505

plaga

noun 0.505

trou

noun 0.504

project

noun 0.504

pausa

noun 0.503

con

noun 0.503

worry

noun 0.502