"Un-Thinkable (I'm Ready)" spent twelve consecutive weeks atop the Billboard Hot R&B/Hip Hop Songs, becoming the longest-running number-one single of 2010.

[citation needed] Mariel Concepcion from Billboard magazine called the song the album's "standout track".

Concepcion said that Keys "goes from entertaining puppy love to confessing deeper emotions", adding that she "sings nervously over extended piano strokes" and "has never sounded quite as vulnerable and exposed as she does here.

Skittering beats, trembling synths, deep piano chord progressions, and floating drums.

It sounds like it was recorded in a downtempo underwater sex chamber or inside a neon motel sign ...

[10] The official remix of the song features a verse by Canadian rapper Drake was released on iTunes on May 28, 2010.

[1] The video tackles issues of interracial dating and as Keys told Rap Up magazine, "The promo clip will highlight the past and present stigmas surrounding the subject."