not precisely limited, determined, or distinguished; "an undefined term"; "undefined authority"; "some undefined sense of excitement"; "vague feelings of sadness"; "a vague uneasiness"
concerned with or characterized by rigorous or adherence to recognized forms (especially in religion or art); "highly formalized plays like `Waiting for Godot'"
seemingly boundless in amount, number, degree, or especially extent; "unbounded enthusiasm"; "children with boundless energy"; "a limitless supply of money"