inartistic

The building was criticized for its inartistic design and lack of character.

(Chinese) 这座建筑因其缺乏艺术感的设计和缺乏特色而受到批评。

He made an inartistic attempt to repair the broken vase with thick glue.

(Chinese) 他尝试用厚厚的胶水修复破损的花瓶，但这修补得实在毫无美感。