desaparecido
Also the participle singular masc of desaparecer · disappeared
adjective
· common
1
missing
"Buscan a un niño desaparecido desde ayer."
They are searching for a boy missing since yesterday.
2
extinct, vanished
"Estudian una especie desaparecida hace siglos."
They study a species that vanished centuries ago.
masculine noun
· commonmissing person, the disappeared
"La policía busca al desaparecido."
The police are looking for the missing person.