How to say "fundamental" in Japanese

Choosing the right word
  • 基本的きほんてきCommon
    na-adjectiveCovers the sense of 'fundamental' as 'basic' or 'elementary' — the essential groundwork of something. Typical contexts include basic ideas, principles, or skills that serve as a foundation.
    順じゅんを追おって基本的きほんてきなタグを覚おぼえていこう。↗
    Let's learn the basic tags in order.
  • 根本的こんぽんてきCommon
    na-adjectiveCovers 'fundamental' in the sense of going to the root of a matter — thorough and far-reaching rather than superficial, as in a fundamental reform or a fundamental change of policy.
    それでは根本的こんぽんてきな問題もんだいを見みてみることにしましょう。↗
    Let us turn now to the fundamental issue.

Both 基本的 and 根本的 translate 'fundamental'; use 基本的 for something being basic or elementary, and 根本的 for something lying at the root of a matter or involving thorough, from-the-ground-up treatment.

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

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