untiring

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

characterized by hard work and perseverance
• Syn:
hardworking, industrious, tireless
• Similar to:
diligent
• Derivationally related forms:
tirelessness (for: tireless), industry (for: industrious), industriousness (for: industrious)

• Từ đồng nghĩa / Synonyms:
  hardworking, industrious, tireless