Vague or unclear.
Undecided or uncertain.
Being an integral without specified limits.
Designating an unspecified or unidentified person or thing or group of persons or things
Without limit; forever, or until further notice; not definite.
A word or phrase that designates an unspecified or unidentified person or thing or group of persons or things.
Unexplored or unknown.
Unturned with a plough, and thus retaining its original vegetation (usually grass).