| indefatigable definitions |
| # | Definition | Sets |
| 1 | tireless | 120 sets |
| 2 | untiring | 84 sets |
| 3 | tireless; untiring; showing no sign of getting tired | 50 sets |
| 4 | tireless, incapable of being fatigued | 40 sets |
| 5 | incapable of being tired out | 30 sets |
| 6 | incapable of being fatigued | 20 sets |
| 7 | showing sustained enthusiastic action with unflagging vitality | 20 sets |
| 8 | incapable of defeat, failure, decay | 19 sets |
| 9 | never tired | 18 sets |
| 10 | persisting tirelessly | 16 sets |
| 11 | tireless; incapable of being fatigued | 13 sets |
| 12 | not easily exhaustible, tireless, dogged | 12 sets |
| 13 | untiring, tireless | 11 sets |
| 14 | not easily made tired; tireless | 10 sets |
| 15 | untiring; tireless | 7 sets |
| 16 | adj. tireless | 7 sets |
| 17 | tireless, unceasing | 7 sets |
| 18 | incapable of being tired | 7 sets |
| 19 | incapable of being tired out; not yielding to fatigue; untiring. | 6 sets |
| 20 | never getting tired | 6 sets |
| 21 | untiring. | 5 sets |
| 22 | (adj) not easily exhaustible; tireless; dogged | 5 sets |
| 23 | adj. not easily made tired; tireless | 5 sets |
| 24 | never showing any sign of getting tired or of relaxing an effort | 5 sets |
| 25 | (adj.) incapable of defeat, failure, decay | 5 sets |
| 26 | tireless, incapable of wearing out or becoming fatigued | 4 sets |
| 27 | capable of working a long time without tiring | 4 sets |
| 28 | unable to be fatigued | 4 sets |
| 29 | never tired, tireless | 4 sets |
| 30 | incapable of being fatigued, having great stamina | 3 sets |
| 31 | exhausted | 3 sets |
| 32 | with indefatigable energy; tireless | 3 sets |
| 33 | adj. untiring; tireless | 3 sets |
| 34 | unable to be tired out | 3 sets |
| 35 | extremely persistent and untiring | 3 sets |
| 36 | adj. 1. untiring; tireless | 3 sets |
| 37 | incapable or seemingly incapable of being fatigued; tireless. adjective. the indefatigable team slogged on through the long night. | 3 sets |
| 38 | tirelessly | 3 sets |
| 39 | tireless or seemingly tireless | 3 sets |
| 40 | not easily made tired | 3 sets |