savorless

The soup was completely savorless, as if all the seasoning had been forgotten.

这汤完全没有味道，好像所有的调味料都被忘了。

He found the lecture savorless and struggled to stay awake.

他觉得这场讲座索然无味，努力保持清醒。

Without salt, the boiled potatoes were savorless and unappealing.

没有盐，煮土豆淡而无味，不吸引人。