indefinite
🇺🇸
/ɪnˈdefɪnət/
🇬🇧
/ɪnˈdefɪnət/
lasting for an unknown or unlimited time
The project was put on hold for an indefinite period.
該項目被無限期擱置。
not clear or exact
He gave an indefinite answer about his plans.
關於他的計劃,他給出了一個模糊的回答。