How to say "existing" in Japanese

• 既存きそんCommon
  no-adjective, suru verb, intransitive verbThe default word for 'existing': describes things such as systems, facilities, or rules that already exist or are already in place, often when introducing something new alongside or in contrast to them.
  どんなに優雅ゆうがで堂々どうどうとした既存きそんのビルも、今いまや、その怪物かいぶつのわきでは、ちょっと滑稽こっけいにさえ見みえるほど痛いたましいまでに小ちいさくなってしまうだろう。↗

  Even the most graceful and imposing existing buildings may now be so sadly diminished as to seem slightly ridiculous beside the monster.
• 現存げんぞんCommon
  no-adjective, suru verb, intransitive verbCovers 'existing' in the sense of still surviving or remaining today, and also 'living'; typical of buildings, documents, works, or organisms that exist or remain at present.
  彼かれは現存げんそんする最高さいこうの芸術家げいじゅつかである。↗

  He is the greatest living artist.
• 介在かいざいCommon
  noun, suru verb, intransitive verbNot a general word for 'existing' — it means existing between, or interposing or intervening, as when something stands between two parties or elements. Choose it only for that 'in between' sense.
• 既成きせいCommon
  no-adjectiveMeans established, accomplished, or accepted rather than merely existing; used for things such as established facts, ideas, or frameworks that have been formed and are taken as given.
• 現有げんゆうCommon
  no-adjective, suru verb, transitive verbMeans 'present; existing' in the sense of currently held or possessed, typically describing resources, assets, or capabilities an organization or person has at hand now.

Use 既存 for things already in place, 現存 for what still exists or survives, 既成 for established or accepted things, 現有 for currently held or possessed, and 介在 only for existing between things.

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

• 既存きそんexisting
• 現存げんぞんexisting
• 介在かいざいexisting (between)
• 既成きせいestablished
• 現有げんゆうpresent
• 既設きせつestablished
• ありexisting (at the present moment)
• 現げんpresent (e.g. government, administration)
• 従来型じゅうらいがたexisting (type, style, form)
• 従来じゅうらいtraditional