halting

noun 0.784

undecidability

noun 0.628

decision problem

noun 0.620

unsolvability

noun 0.594

nontermination

noun 0.593

open problem

noun 0.581

stopping

noun 0.568

problem

noun 0.541

computability theory

noun 0.531

computability

noun 0.526

problem space

noun 0.520

stop

noun 0.514

problematic

noun 0.509

stopping time

noun 0.509

stoping

noun 0.506

technical difficulty

noun 0.506

unsatisfiability

noun 0.505

deadlock

noun 0.502