1、fun的比较级为：more fun。

2、more fun：英[mɔː(r) fʌn]，美[mɔːr fʌn]。更有趣; 美国人用; 更多乐趣; 更加有趣; 有趣得多。

3、例句：I found myself having more fun than I had had in years.我发现自己这些年来从未像现在这样开心过。