What is the definition of Indefatigable? | Dictionary.net

INDEFATIGABLE

\ˌɪndɪfˈatɪɡəbə͡l], \ˌɪndɪfˈatɪɡəbə‍l], \ˌɪ_n_d_ɪ_f_ˈa_t_ɪ_ɡ_ə_b_əl]\

Definitions of INDEFATIGABLE

2006 - WordNet 3.0
2011 - English Dictionary Database
1899 - The american dictionary of the english language.
1874 - Etymological and pronouncing dictionary of the English language
1790 - A Complete Dictionary of the English Language

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showing sustained enthusiastic action with unflagging vitality; "an indefatigable advocate of equal rights"; "a tireless worker"; "unflagging pursuit of excellence"

2006 - WordNet 3.0
By Princeton University

showing sustained enthusiastic action with unflagging vitality; "an indefatigable advocate of equal rights"; "a tireless worker"; "unflagging pursuit of excellence"

2011 - English Dictionary Database
By DataStellar Co., Ltd

That cannot be fatigued or wearied out: unremitting in effort: persevering.
INDEFATIGABLENESS.

1899 - The american dictionary of the english language.
By Daniel Lyons

Unwearied; not yielding to fatigue.

1874 - Etymological and pronouncing dictionary of the English language
By Stormonth, James, Phelp, P. H.

Unwearied, not tired, not exhausted by labour.

1790 - A Complete Dictionary of the English Language
By Thomas Sheridan

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