equivocado

listen to the pronunciation of equivocado
Испанский Язык - Турецкий язык
yanlış
Испанский Язык - Английский Язык
wrong, mistaken
misguided
lost
inadvertent
off the track
mistaken

It appears that you are all mistaken. - Parece que todos estáis equivocados.

I must admit that I was mistaken. - Debo admitir que estuve equivocado.

off base