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English definition of “tireless”

tireless

adjective uk   /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.
tirelessly
adverb uk   /-li/ us  
Sylvia Pankhurst campaigned tirelessly for votes for women.
(Definition of tireless from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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