indefinite
Definitions
Not clearly expressed or defined; vague or imprecise.
Lasting for an unknown or unstated length of time.
Not having a fixed limit; indeterminate.
Examples
The project has been postponed for an indefinite period due to a lack of funding.
He gave an indefinite answer when asked about his future plans.
The strike will continue for an indefinite amount of time until the union's demands are met.
Synonyms
vague uncertain ambiguous unclear undefined obscure imprecise