INDEFATIGABILITY
Meaning of INDEFATIGABILITY in English
|ində̇ˌfad.]ə̇gə|biləd.ē, -dēˌ-, -at], ]ēg-, -ətē, -i\ noun
( -es )
: the quality or state of being indefatigable
Webster's New International English Dictionary.
Новый международный словарь английского языка Webster.
2012