What's the adjective for breadths? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs broaden and breadthen which may be used as adjectives within certain contexts.
“At that point, however, as it happens, there is a broadish ditch, moist at the bottom.”
“The man who attacked her was aged between 17 and 18 years old, 6ft and of slim build with broadish shoulders and short dark hair.”
“He was of medium build with broadish shoulders, medium height, wearing a short, dark casual cotton jacket with a small collar and light-coloured trousers.”