How to say "essentially" in Japanese

• 元来がんらいJLPT N1approx.Common
  adverbCovers 'essentially' but leans toward 'originally, from the start'; often the sense is 'as things were by origin'. If you mean purely intrinsic or fundamental qualities, 本来 is usually the safer choice.
  元来がんらいフットボールとは、ポロのように馬うまに乗のって行おこなわれる競技きょうぎとは違ちがって、足あしで、ボールを使つかって行おこなわれる競技きょうぎのことでした。↗

  Football originally meant "a game played with a ball on foot" - unlike a game played on horseback, such as polo.
• 本来ほんらいJLPT N2approx.Common
  adverb, no-adjectiveThe straightforward word for 'essentially, intrinsically'; describes what something is by its inherent nature, as in saying a task is essentially simple. This is generally the word you want for that sense.
  競争きょうそうは本来ほんらい悪わるいものではない。↗

  Competition is not by nature evil.

Both words cover 'essentially' in the sense of 'fundamentally, by nature'; use 本来 for intrinsic character, and reach for 元来 when the 'originally' nuance matters.

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

• 元来がんらいoriginally
• 原則としてげんそくとしてas a rule
• 本来ほんらいessentially
• 実質じっしつin essence