Descaro translates to "shamelessness" or "audacity." It's a strong word that conveys a sense of boldness and lack of shame, often in a negative context.
In the song, the lyric "Cómo me miras con tanto descaro" (How you look at me with so much shamelessness) highlights the singer's frustration with his ex-partner's brazen attitude, especially after their breakup. It's an emotionally charged word that captures the intensity of his feelings.
"Perdiendo el Tiempo" is Silvestre Dangond's message to an ex who won't let go. The singer asks how she can look at him so boldly and ask if he's forgotten her, when the truth is he's already moved on and healed.
He calls her out for still believing she can win him back, and reminds her that time has cured what she broke. In the second verse he gets sharper, telling her flat out to stop with the lies and empty promises, since he sees through them now.
The chorus repeats the song's core idea: she's wasting her time coming around, because going back to her would feel like moving into hell. It's a breakup song about standing firm and refusing to fall for old tricks.