indefatigable

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

showing sustained enthusiastic action with unflagging vitality (Freq. 1)
- an indefatigable advocate of equal rights
- a tireless worker
- unflagging pursuit of excellence
• Syn:
tireless, unflagging, unwearying
• Similar to:
energetic
• Derivationally related forms:
tirelessness (for: tireless), indefatigableness, indefatigability

• Từ đồng nghĩa / Synonyms:
  tireless, unflagging, unwearying