How to Say "authentic" in Spanish
The most common Spanish word for “authentic” is “auténtico” — use this word when you mean genuine, real, or true, as opposed to fake or imitation, and it is the most general translation..
auténtico
Examples
Este reloj es auténtico; lo compré en Suiza.
This watch is authentic; I bought it in Switzerland.
original
oh-ree-hee-NAL/oɾixiˈnal/

Examples
Necesitas presentar tu pasaporte original para el trámite.
You need to present your original passport for the process.
La versión original de esta canción es la mejor.
The original version of this song is the best.
El plan original era ir a la playa, pero llovió.
The initial plan was to go to the beach, but it rained.
Adjective Agreement
Since 'original' ends in -l, it stays the same whether the noun is masculine (el documento original) or feminine (la versión original).
verdadera
/ber-dah-DEH-rah//beɾðaˈðeɾa/

Examples
Esta joya parece una pieza de plata verdadera.
This jewel looks like a piece of genuine silver.
Encontré la paz interior verdadera después de mucho tiempo.
I found true inner peace after a long time.
basada
bah-SAH-dah/baˈsaða/

Examples
Ella dijo la verdad sin miedo. ¡Qué basada!
She told the truth without fear. How based!
Tu postura sobre el tema es súper basada.
Your stance on the issue is super based/authentic.
Slang Origin
This meaning is a direct import from English internet culture ('based'). It means the person or opinion is firmly rooted in common sense or authentic conviction, often defying popular opinion.
Confusing 'auténtico' with 'verdadera' or 'original'
Related Translations
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