| Similarity | Rank | |
|---|---|---|
| difficulty | 0.826 | 870 |
| solve | 0.748 | 2338 |
| dilemma | 0.698 | 4851 |
| solving | 0.688 | 60823 |
| vexing | 0.685 | 48295 |
| level-of-analysis | 0.684 | 65758 |
| intractable | 0.682 | 15377 |
| trouble | 0.680 | 1070 |
| situation | 0.661 | 598 |
| insuperable | 0.650 | 28053 |
| polycentric | 0.648 | 71584 |
| free-rider | 0.647 | 46022 |
| over-consumption | 0.647 | 67977 |
| conundrum | 0.642 | 24740 |
| need | 0.631 | 120 |
| imponderable | 0.629 | 36141 |
| overuse | 0.625 | 42709 |
| pitfall | 0.624 | 11534 |
| unresolvable | 0.623 | 72563 |
| unem | 0.622 | 75984 |
| tackle | 0.621 | 2441 |
| jardea | 0.618 | 92806 |
| exacerbate | 0.618 | 7936 |
| here-and-now | 0.617 | 78790 |
| subproblem | 0.615 | 96774 |