跡形|あとかたatokata[0]heiban (flat)

1. nountrace; vestige; evidence
   バブルが跡形あとかたもなく消え去きえさったからである。↗

   That's because the bubble vanished into thin air.

• Synonym形跡けいせきWrittenWritten/formal prose. Points to signs that something happened, often as grounds for inference, as in 「侵入した形跡」. 「跡形」 is mostly seen in 「跡形もなく」.
• Synonym痕跡こんせきWrittenWritten/formal prose. Covers traces left behind, with a wide range of uses, as in 「痕跡を残す」 and 「犯行の痕跡」. 「跡形」 is mostly seen in 「跡形もなく」.
• Synonym跡あとWrittenWritten/formal prose. Means tracks or traces but mostly appears as a component in compounds like 「遺跡」 and 「追跡」; rarely used on its own.
• Related跡せきWrittenWritten/formal prose. Means tracks or traces but mostly appears as a component in compounds like 「遺跡」 and 「追跡」; rarely used on its own.
• Related残痕ざんこんWrittenWritten/formal prose. Refers to scars or traces that remain; rarely used.

For traces in general, 「跡」 and 「痕跡」 are the usual picks. To say something vanished leaving not even a shadow, use 「跡形もなく消える」. For signs that serve as grounds for inference, 「形跡」 fits. 「残痕」 is rare.

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

1. 以前いぜんに何なんかが存在そんざいしていたことを証拠しょうこ立たてる印しるし。