authentic
US /ɑːˈθen.t̬ɪk/
UK /ɑːˈθen.t̬ɪk/

1.
2.
preciso, confiable
based on facts; accurate or reliable
:
•
The report provides an authentic account of the events.
El informe proporciona un relato auténtico de los hechos.
•
Her emotions were authentic and deeply felt.
Sus emociones eran auténticas y profundamente sentidas.