In the given question, the word is ‘uncouth’. Uncouth is an adjective. Uncouth comes from the English word ‘uncuth’. If someone is uncouth, they lack personal manner and charm. Now, that we all know what the word means, we must find a word whose meaning is that the opposite of ‘uncouth’. Logically, this implies that we've got to seek out a word whose meaning has courtesy and being graceful. Out of all the given options, the word refined, which suggests to be elegant and cultured in appearance is that the correct match of this opposite meaning. Hence, option ‘d’ is that the correct answer.