Inigualable means 'unequaled' or 'unparalleled'. It's a powerful adjective used to describe something or someone so unique that they have no equal.
In this song, the singer uses this word to express the profound and singular beauty of the person he loves, stating, "Como tú no hay nadie, eres inigualable" (There's no one like you, you are unequaled). It perfectly captures the depth of his admiration and makes the word truly stand out.
This song is a full-on romantic declaration! The singer is completely in love and isn't afraid to make some huge promises to prove it. He starts by saying he feels like a nobody, or a "Don nadie," but that doesn't stop him from offering the moon and stars. He's so smitten that he admits, "Siempre te he soñado, hasta te he dibujado" (I've always dreamed of you, I've even drawn you), which is pretty intense!
He's willing to do literally anything to win this person over, asking them to "Ponme un precio y daría todo por tu amor" (Put a price on it and I would give everything for your love). He promises respect, thousands of songs, and even to hire a banda or norteño group to play just for them. All he really wants is to be with them and "Compartir contigo diciembre" (To share December with you), a month often filled with holidays and special moments.