The Grammy Award-winning artist got her new artwork done by renowned celebrity tattoo parlour, Bang Bang, in New York on Thursday (27 June).
The 25-year-old, who spent some time hanging out with magician David Blaine this week, already has the letter 'A' inked behind her right ear, which is thought to be a tribute to her son Angelo.
Adele, who wore large black glasses, was all smiles as she flaunted her new design in a photo posted to Facebook by Bang Bang.
Bang Bang, who have tattooed the likes of Chris Brown, Katy Perry, Rihanna and Cara Delevingne, captioned the photo: "The lovely Adele came in to get tattooed today."
The 'Skyfall' singer welcomed her first child, Angelo, last October with boyfriend Simon Konecki. Although the star has recently been keeping a relatively low profile, she is thought to be working on her forthcoming third studio album.