supposed

required or under orders; "I'm supposed to be there at ten"; "he was supposed to go to the store"

mistakenly believed; "the supposed existence of ghosts"

doubtful or suspect; "these so-called experts are no help"

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"; "hypothetical situation"