noun

1. (grammar) A word or phrase that designates an unspecified or unidentified person or thing or group of persons or things.

adjective

1. Without limit; forever, or until further notice; not definite.

2. Vague or unclear.

3. Undecided or uncertain.

Synonyms: indecisive, indeterminate, unsettled, unsure, hazy, unlimited, unrestricted