big-boned
US /ˌbɪɡˈboʊnd/
UK /ˌbɪɡˈboʊnd/

1.
having a large, heavy bone structure; sturdily built
:
•
She's not fat, just naturally big-boned.
•
He was a tall, big-boned man with broad shoulders.
having a large, heavy bone structure; sturdily built