Speciosity \Spe`ci*os"i*ty\, n.; pl. {Speciocities}. [Cf. LL. {speciositas}.] 1. The quality or state of being specious; speciousness. [1913 Webster] Professions built so largely on speciosity, instead of performance. --Carlyle. [1913 Webster] 2. That which is specious. --Dr. H. More. [1913 Webster]