undefined
adj. 未定义的；不明确的
近义词：unknown，vague，indeterminate，approximate，open-ended，indefinite，undecided，unclear，defined，
英英释义
Adjective
- not precisely limited, determined, or distinguished;
"an undefined term" "undefined authority" "some undefined sense of excitement" "vague feelings of sadness" "a vague uneasiness"
例句
用作形容词(adj.)
- The result of the call is undefined.调用的结果是未定义的。
- A sort of undefined longing crept upon them.有一种说不出名目的渴望使他们心里发痒。