tautoˈlogicalnessn.rare the quality or state of being tautological; cf. tautologicalityn.
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1727 N. BaileyUniversal Etymol. Eng. Dict. IITautologicalness, tautological Quality, or Fulness of Tautologies.
1970 Amer. Educ. Res. Jrnl.7 363 Subject's responses were scored by two trained judges on each of such dimensions as novelty, tautologicalness, richness or implied meaning.