Someone described as zaftig has a full, rounded figure, or in other words is pleasingly plump.

// Portraits of zaftig models are exhibited in the artist's collection.

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"... Pablo Picasso produced an estimated 13,500 paintings, in addition to astounding quantities of drawings, prints, sculptures and ceramics. ... He veered between opposite poles of abstraction and realism, between the gaunt, poetic figures of his Blue Period and the zaftig matrons of his Rose Period, between the paper-lightness of his wildly inventive collages and the bulbous tonnage of his sculpted bronze heads." — Deborah Solomon, The New York Times, 9 Apr. 2023

Zaftig has been in use in English—mainly in the United States—since the 1920s; a couple of the earliest known uses are found in Variety magazine, in reviews of burlesque dancers. The word comes from the Yiddish zaftik, meaning "juicy" or "succulent," which in turn comes from zaft, meaning "juice" or "sap." If this word is new to you and you would like to take it out for a spin, please be advised that even though most dictionaries define it as implying attractiveness, people to whom it might apply may not appreciate its use.