accidental bedeutet auf Englisch

accidental▼(happening by chance)
adjective
[UK: ˌæk.sɪ.ˈden.tl̩] [US: ˌæk.sə.ˈden.tl̩]I accidentally saw her naked. = Accidentalmente la vi desnuda.

casual▼(happening by chance)
adjective
[UK: ˈkæ.ʒʊəl] [US: ˈkæ.ʒə.wəl]It was a casual meeting. = Fue un encuentro accidental.

accidentally▼(unexpectedly, unintentionally)
adverb
[UK: ˌæk.sɪ.ˈden.tl̩i] [US: ˌæk.sə.ˈden.tl̩i]I accidentally saw her naked. = Accidentalmente la vi desnuda.

unwittingly▼(in an unwitting manner)
adverb
[UK: ʌn.ˈwɪ.tɪŋ.li] [US: ʌˈn.wɪ.tɪŋ.li]