suboptimal

adj.未达最佳标准的,不最理想的,不最适宜的,不最满意的

次优的，次优秀的

形容词

1. The current system is suboptimal and in need of improvement.
目前的系统并不理想，需要改进。
2. The suboptimal performance of the team led to their defeat.
球队表现次优导致了他们的失败。