noun-modifying (irregular)
Prenominal form of 広々, describing a space that feels wide, open, and unconfined. Often used for rooms, landscapes, or areas.
See also: 広々
広々とした公園でピクニックを楽しんだ。
We enjoyed a picnic in the spacious park.
この部屋は広々としていて気持ちがいい。
This room is open and feels pleasant.
Reduplication of 広い (ひろい, 'wide') with the adverbial suffix と, forming a mimetic-like expression for spaciousness.