desconocido

listen to the pronunciation of desconocido
İspanyolca - İngilizce
someone or something that is unfamiliar
confidential
fameless
unbeknown
newcomer
unknown

It is estimated that a great part of his inventions would remain unknown to the date. - Se estima que una gran parte de sus inventos permanecerían desconocidos hasta la fecha.

Many great thinkers who were unknown while alive became famous after death. - Muchos prominentes pensadores que fueron desconocidos en vida se hicieron famosos después de su muerte.

unknown, someone or something which is not known
undiscovered
unknown person
complete stranger