indecisive āļāļ·āļāļāļ°āđāļĢ indecisive āļāļ·āļāļāļ°āđāļĢ Prone to or characterized by indecision; irresolute: an indecisive manager.Inconclusive: an indecisive contest; an indecisive battle.Not clearly defined; indefinite: indecisive boundaries running through mountainous terrain.