Found 2 items, similar to supposititious.
English → English (WordNet) Definition: supposititious supposititious adj : based primarily on surmise rather than adequate evidence; “theories about the extinction of dinosaurs are still highly conjectural”; “the supposed reason for his absence”; “suppositious reconstructions of dead languages”; “supposititious hypotheses” [syn: conjectural, divinatory, supposed, suppositional, suppositious]
English → English (gcide) Definition: Supposititious Supposititious \Sup*pos`i*ti"tious\, a. [L. suppositicus. See Supposition.] 1. Fraudulently substituted for something else; not being what is purports to be; not genuine; spurious; counterfeit; as, a supposititious child; a supposititious writing. --Bacon. [1913 Webster] 2. Suppositional; hypothetical. [R.] --Woodward. [1913 Webster] -- Sup*pos`i*ti"tious*ly, adv. -- Sup*pos`i*ti"tious*ness, n. [1913 Webster]