equivocado

listen to the pronunciation of equivocado
İspanyolca - Türkçe
yanlış
İspanyolca - İngilizce
wrong, mistaken
misguided
lost
inadvertent
off the track
mistaken

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

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

off base