sup ‧ posed /səˈpəʊzd, səˈpəʊzəd $ -ˈpoʊzd, -ˈpoʊzəd/ BrE AmE adjective [only before noun]
[ Word Family: verb : ↑ suppose , ↑ presuppose ; noun : ↑ supposition , ↑ presupposition ; adverb : ↑ supposedly ; adjective : ↑ supposed ]
claimed by other people to be true or real, although you do not think they are right:
gossip about Emma’s supposed affair with Peter