In a manner that is not definite. / For a long time, with no defined end. / Forever.

Without limit; forever, or until further notice; not definite. / Vague or unclear. / Undecided or uncertain. / (mathematics) Being an integral without specified limits.

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

The characteristic of being indefinite.

plural of indefinite

(grammar) A word preceding a noun to indicate that the noun refers to any member of the class of objects named by the noun.

(grammar) A pronoun that does not specify the identity of its referent.

An indefinite pronoun used as a determiner.

(mathematics) A function whose derivative is a given function; an antiderivative

plural of indefinite pronoun