资料来源 : pyDict

不疲劳,不屈不挠

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Indefatigability \In`de*fat`i*ga*bil"i*ty\, n.
   The state of being indefatigable.

资料来源 : WordNet®

indefatigability
     n : tireless determination [syn: {indefatigableness}, {tirelessness}]