Melania has worn the ensemble before, during her visit to Israel last year.
Despite being a completely see-through design, the 48 year old protected her modesty by wearing a black slip beneath.
Featuring three-quarter length sleeves and a high-neck detail, the dress showed off Melania’s epic figure.
With frilly floral patterns weaved into the material, the First Lady looked as elegant as always as she sat alongside her husband.
Upping the levels of glamour for such an important occasion, Melania wore heavy makeup and lashings of mascara to flaunt her model features.
Over a sweep of bronzer Donald Trump’s wife added plenty of rouge and a pink glossy lip to brighten her smouldering look.
Highlighting her blue eyes, Melania heavily lined her peepers with kohl and wore dark smokey eyeshadow.
She also appeared to have added a little more shade to her perfectly-structured brows.
Sticking with her trademark wavy locks, the mother of one styled her brunette tresses into subtle waves.
Donald Trump’s daughter Ivanka was also at their Thanksgiving dinner, arriving in a silk Michael Kors Collection dress.
The dress, which was sleeveless and quite low on the back, featured delicate blue flowers all over it.
A small puffed out skirt over the knee added an interesting detail to the outfit.
But while the silhouette suited Ivanka, the colour was a surprising choice.
In America, there has been a steadfast fashion rule of not wearing white after Labor Day, which this year was Monday 3 September.
However Ivanka decided to break the style mandate at one of the most photographed events of the political social calendar.
Seemingly unaware of her daring choice, Ivanka beamed in a selection of pictures she shared to Instagram.