indefatigableness


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Noun1.indefatigableness - tireless determination
determination, purpose - the quality of being determined to do or achieve something; firmness of purpose; "his determination showed in his every movement"; "he is a man of purpose"
References in periodicals archive ?
In histories of Methodism, he often appears as a somewhat bureaucratic figure, admired for his diligence and indefatigableness rather than his brilliance.