delusional

having beliefs that are not based on reality and cannot be changed by facts or reason

ilusorio, delirante, irrealista

• be delusional about something

Collocations delusional beliefs · delusional thinking

• She was becoming increasingly delusional.

  Ella estaba volviéndose cada vez más ilusoria.

showing or characterized by a strong belief in something that is not real, often to an extreme degree

irrealista, engañado por la realidad

• be delusional about somebody/something

Collocations delusional behavior · delusional attitude

• He has a delusional view of his own abilities.

  Él tiene una visión irrealista de sus propias habilidades.