1. having no fixed or specified limit: an indefinite number. 2. not clearly defined or determined: an indefinite boundary. 3. not firmly decided or committed; uncertain; vague.
Definition of indefinite adjective from the Oxford Advanced Learner's Dictionary. lasting for a period of time that has no fixed end. She will be away for the indefinite future. The workers have been on indefinite strike since July. Questions about grammar and vocabulary?
indefinite (plural indefinites) (grammar) A word or phrase that designates an unspecified or unidentified person or thing or group of persons or things.
The adjective indefinite describes something that is vague or not clearly defined: “After injuring her knee in a riding accident, Gloria postponed her vacation for an indefinite period of time.”