Synonyms of indefinite

Adjective

1. indefinite (vs. definite), coy, indecisive, nebulous, unfixed, noncommittal, one(prenominal), indistinct, unclear, undefined#1, vague

usage: vague or not clearly defined or stated; "must you be so indefinite?"; "amorphous blots of color having vague and indefinite edges"; "he would not answer so indefinite a proposal"

2. indefinite, uncertain (vs. certain)

usage: not decided or not known; "were indefinite about their plans"; "plans are indefinite"

Definition and meaning of indefinite (Dictionary)