wearilessly

/ˈwɪri.ləs.li/
adverb
  1. In a way that shows no sign of getting tired; without stopping or losing energy.
    • She practiced the piano wearilessly until she could play the piece perfectly.
    • The volunteers worked wearilessly through the night to pack supplies.
    • The search party continued wearilessly, even as the sun began to set.
Antonyms
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