indefatigable
Pronunciation
Adjective
C1 Advanced
Quick answer
Never getting tired, especially when working hard toward a goal.
Synonyms and antonyms
Synonyms
tireless
unflagging
Antonyms
weary
Test yourself
Which word fits the gap? "The _____ volunteers kept working long after everyone else had gone home."
Answer: indefatigable
In your own words, what does "indefatigable" mean?
Never getting tired, especially when working hard toward a goal.
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