Which is a Synonym of "Indefatigable"?

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Which is a Synonym of "Indefatigable"? Answer: Tireless

The word “Indefatigable” means persisting tirelessly; never showing signs of fatigue. A close synonym is “Tireless”, as both describe someone who works energetically without getting exhausted.

Question context

This question is part of 🗣️ Verbal Ability within the broader 🧠 Aptitude Mastery subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.