Very few adults boast that no one can understand a word they say, but quite a few seem proud of ______ handwriting.
【正确答案】
C
【答案解析】 形容词词义辨析。第一个分句的双重否定加but之后，逻辑难以理解，其可以变化为：adults boast that everyone can understand a word they say(去掉双重否定)，所以but一转折，应填入与understand意思相反的词。选项中，只有indecipherable(无法解释的；难辨认的)符合要求。