| Similarity | Rank | |
|---|---|---|
| Prolonged | 0.841 | 47319 |
| protracted | 0.807 | 25319 |
| periods | 0.740 | 3475 |
| prolong | 0.735 | 21212 |
| duration | 0.728 | 4894 |
| intermittent | 0.724 | 19683 |
| severe | 0.723 | 2524 |
| prolonging | 0.718 | 46300 |
| onset | 0.708 | 10241 |
| lengthy | 0.699 | 6588 |
| durations | 0.698 | 36433 |
| prolongs | 0.696 | 67297 |
| worsens | 0.687 | 40983 |
| excessive | 0.685 | 4481 |
| infrequent | 0.677 | 28030 |
| subsides | 0.676 | 46159 |
| unremitting | 0.674 | 67139 |
| lengthier | 0.672 | 40165 |
| agonizing | 0.672 | 28294 |
| prolongation | 0.668 | 62589 |
| recuperation | 0.666 | 43147 |
| convalescence | 0.662 | 86822 |
| endure | 0.660 | 8467 |
| worsen | 0.659 | 19357 |
| subside | 0.658 | 31017 |