Talk show host Oprah Winfrey, 69, flaunts a waist slimmer than ever in a form-fitting white dress during her appearance at the Smithsonian after an impressive weight loss.

Oprah disclosed the key to her trimmer figure and shared insights into her successful weight loss journey. The 69-year-old presented a portrait of herself to the public at the Smithsonian National Portrait Gallery in Washington DC. Oprah Winfrey showcased her svelte figure during a formal event held at an art gallery, surrounded by a captivated audience.

The unveiling of Oprah's portrait served as a tribute to her illustrious career and her impactful empowerment of women. Stepping onto the stage, she revealed the large oil painting to her admirers.

PHOTO | COURTESY Getty

Oprah looked stunning in a white gown that gracefully descended to her mid-calf.

The gown accentuated Oprah's slimmer-than-ever figure with a cinched waist and a snug fit that clung to her body.

While the tight-fitting gown covered Oprah's arms, her long legs gracefully extended from the bottom. Complementing the ensemble, she wore white leather boots featuring a tall heel.

A stylish ruffle detail adorned the side of the dress, adding an extra touch of flair to her ensemble.

Her brunette hair was elegantly pulled back into a half-updo, and she adorned herself with understated and simple jewelry.