Final answer:
The italicized word 'refined' conveys a connotation of elegance and upper-class sophistication, while 'precise' suggests intelligence and meticulous attention.
Step-by-step explanation:
The connotation of the italicized word refined suggests that her language is not only polished and sophisticated but also suggests qualities of elegance and perhaps an upper-class attribute. The word precise indicates that her language is exact and meticulous, giving the impression of intelligence and attention to detail. These connotative meanings enhance our understanding of the subject's articulate nature, higher social standing, or educational background.