Definition of "indefinite"

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

Vague or unclear.  examples

Undecided or uncertain.  examples

(mathematics) Being an integral without specified limits.  examples

(linguistics) Designating an unspecified or unidentified person or thing or group of persons or things  examples

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