Definition of Supposed

Adjective: supposed su'powzd

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 supposed experts are no help";
- alleged, so-called
Based primarily on surmise rather than adequate evidence
"the supposed reason for his absence";
- conjectural, divinatory, hypothetical, hypothetic, suppositional, suppositious, supposititious

Verb: suppose su'powz

Express a supposition
- say
Expect to be true; believe
- think, opine, imagine, reckon, guess
To believe especially on uncertain or tentative grounds
"Scientists supposed that large dinosaurs lived in swamps";
- speculate, theorize, theorise [Brit], conjecture, hypothesize, hypothesise [Brit], hypothecate
Take for granted or as a given; expect beforehand
"I suppose that you have done your work";
- presuppose
(logic) require as a necessary antecedent or precondition
- presuppose