увиденное

what was seen, what someone saw

→ увидеть
у away or off; often marks a completed action + вид to see + енн passive participle + ое Neuter singular
adjective · singular neuter, past tense Rare #35,984
what was seen, what someone saw Often used as a noun meaning the things or scene someone saw.
RU: Увиденное меня удивило.
EN: What I saw surprised me.

Увиденное удивило Тома.

What he saw surprised Tom.

Увиденное её удивило.

What she saw surprised her.

Увиденное потрясло меня.

What I saw shocked me.

— ПиКей (2014)

Увиденное её поразило.

What she saw amazed her.

Увиденное меня удивило.

What I saw surprised me.