indefinable

adj.不能下定义的,不确定的

无法定义的；难以描述的；无法形容的；

形容词；

1、The beauty of nature is often described as indefinable, as it cannot be fully captured or explained in words.
自然的美常常被形容为是难以描述的，因为它无法完全被捕捉或用言语解释。
2、The emotions she felt were complex and indefinable, making it difficult for her to articulate her feelings.
她感到的情绪复杂而无法定义，使得她很难表达她的感受。