How to say "worldwide" in Japanese

• 世界的せかいてきCommon
  na-adjectiveThe natural choice for 'worldwide' meaning global in scale or reach: a company, event, or figure known or active across the whole world. It frames things against the world as a whole.
  トルストイは世界的せかいてき名声めいせいを博はくした。↗

  Tolstoy achieved worldwide fame.
• 国際的こくさいてきCommon
  na-adjectiveCentered on 'international': relations, cooperation, or exchange between countries. Its 'worldwide' sense fits when several nations are involved, but for global scale or worldwide fame 世界的 is usually the better choice.
  麻薬まやく汚染おせんの問題もんだいは国際的こくさいてきである。↗

  The drug problem is international.

Use 世界的 for 'worldwide' meaning global in scale, reach, or fame, and 国際的 when the emphasis falls on relations or involvement between countries, since its core sense is 'international' rather than global.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 世界的せかいてきworldwide
• 国際的こくさいてきinternational
• 万国共通ばんこくきょうつうworldwide
• ワールドワイドworldwide