How to say "vanishing" in Japanese

• 消失しょうしつCommon
  noun, suru verb, intransitive verbCovers vanishing as plain disappearance or dying away: something fading out or being lost until it is gone, rather than being wiped out or extinguished.
  ここで明確めいかくにしなければならない点てんは、スポーツにおいてアマチュアとプロフェッショナルの境界線きょうかいせんが消失しょうしつしつつあるということだ。↗

  The point we must clarify here is that the lines between amateur and professional in sport are beginning to disappear.
• 消滅しょうめつCommon
  noun, suru verb, intransitive verbCovers vanishing as extinction or extinguishment: something ceasing to exist altogether — wiped out or put out — rather than simply fading away or dying out.
  虎とらは消滅しょうめつしかかっている種族しゅぞくである。↗

  The tiger is a vanishing species.

Use 消失 for something vanishing by fading away or dying away, and 消滅 when the vanishing amounts to extinction — the thing being wiped out or extinguished, ceasing to exist altogether.

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

• 消失しょうしつdisappearance
• 消滅しょうめつextinction
• 霧散むさんdispersing
• どろんabsconding
• 雲隠れくもがくれvanishing