 These semantic formulations of metaphysical realism are unacceptable to realists who are deflationists about truth, denying that truth is a substantive notion that can be used to characterise alternative metaphysical views [see the entry on the  deflationary theory of truth].  Realists collectively complain, with some justice, that the anti-realist arguments are really arguments against the correspondence (or other substantive) theory of truth rather than realism [Devitt 1983, 1991; Millikan 1986]. This is an important reason for preferring an ontological construal of realism rather than a semantic one. 