WordWeb Online

1. Required or under orders
   "I'm supposed to be there at ten"; "he was supposed to go to the store"
    
2. Mistakenly believed
   "the supposed existence of ghosts"
    
3. Doubtful or suspect
   - alleged, so-called
    
4. Based primarily on surmise rather than adequate evidence
   "the supposed reason for his absence"
   - conjectural, divinatory, hypothetical, hypothetic, suppositional, suppositious, supposititious

1. Express a supposition
   - say
    
2. Expect, believe, or suppose
   - think, opine, imagine, reckon, guess
    
3. 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
    
4. Take for granted or as a given; suppose beforehand
   - presuppose
    
5. Require as a necessary antecedent or precondition
   - presuppose

See also: improbable, obligated, questionable, supposal, supposition, theoretic, theoretical, unlikely

Type of: anticipate, assume, expect, imply, presume, speculate, take for granted

Encyclopedia: Suppose