trifling
adjective formal uk/ˈtraɪ.flɪŋ/ us/ˈtraɪ.flɪŋ/
（问题或钱款）微不足道的，不重要的
A trifling matter or amount of money is small or not important.
It was such a trifling sum of money to argue about! 就这么点儿小钱，不值一争！
Synonyms: negligiblepaltry