The phrase "most domed" can be replaced with several other synonyms to convey the same meaning. "Vaulted" refers to a structure with a curved or arching roof. "Arched" is similar to "vaulted" but specifically refers to a structure with a semicircular or pointed arch. "Dome-shaped" describes a structure that is hemispherical in shape. "Rounded" implies a smooth, curved shape. "Curved" can also be a synonym for "most domed." Other options include "humped," "bulbous," and "gibbous," depending on the specific context and connotations desired.