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English definition of “tireless”

tireless

adjective     /ˈtaɪə.ləs/ US  /ˈtaɪr-/
working energetically and continuously: Tony is a tireless worker. The prisoner's family is conducting a tireless campaign for his release. The police have been tireless in their search for the child's killer.Energetic and lively tirelessly     /-li/ adverb Sylvia Pankhurst campaigned tirelessly for votes for women.Energetic and lively
(Definition of tireless adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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