indefinite

/ɪnˈdefɪnət/VCE📚 14469 1四级六级托福雅思
If you describe a situation or period as indefinite, you mean that people have not decided when it will end. 不确定的

adjective [原级]无限期的,期限不定的;模糊不清的,不明确的;(词,屈折变化,短语)不定的

The trial was adjourned for an indefinite period.
审判被无限期推迟。

in(不) + definite(明确的) → 不明确的 → 模糊的
单词造句:
网友用“Indefinite”造句精选
...at some indefinite time in the future. …在未来不确定的某个时间。
They seem determined to string the talks out for an indefinite period. 他们好像一心要把谈判无限期地拖下去。
My heart was filled with puzzlement about the indefinite future and longing for the new life. 我的心对不确定的未来充满了困惑,渴望着新生活。