Antonyms of adj gaunt

1 sense of gaunt

Sense 1
bony, cadaverous, emaciated, gaunt, haggard, pinched, skeletal, wasted -- (very thin especially from disease or hunger or cold; "emaciated bony hands"; "a nightmare population of gaunt men and skeletal boys"; "eyes were haggard and cavernous"; "small pinched faces"; "kept life in his wasted frame only by grim concentration")

INDIRECT (VIA thin) -> fat -- (having an (over)abundance of flesh; "he hadn't remembered how fat she was")

Similarity of adj gaunt

1 sense of gaunt

Sense 1
bony, cadaverous, emaciated, gaunt, haggard, pinched, skeletal, wasted -- (very thin especially from disease or hunger or cold; "emaciated bony hands"; "a nightmare population of gaunt men and skeletal boys"; "eyes were haggard and cavernous"; "small pinched faces"; "kept life in his wasted frame only by grim concentration")
       => thin (vs. fat), lean -- (lacking excess flesh; "you can't be too rich or too thin"; "Yon Cassius has a lean and hungry look"-Shakespeare)