How to say "accomplished" in Japanese

• 既成きせいCommon
  no-adjectiveCovers 'accomplished' only in the sense of an accomplished fact: it describes things already done and in existence, such as established facts or systems, never a person's skill.
• 堪能たんのうCommon
  na-adjective, nounCovers 'accomplished' describing a person: someone proficient, skilled, or good at something. Use it when praising a person's high level of skill in a field, such as a language.
  彼女かのじょはフランス語ふらんすごが堪能たんのうだ。↗

  She is proficient in French.

Use 既成 for 'accomplished' in the sense of an accomplished fact — something already done and established — and 堪能 for an accomplished person who is proficient or skilled in some field.

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

• 既成きせいestablished
• 堪能たんのうproficient
• 堪能かんのうproficient
• 手慣れたてなれたpracticed