supposition > define

noun

• A message expressing an opinion based on incomplete evidence.
  • synonyms: guess, conjecture, surmise, surmisal, speculation, hypothesis
• A hypothesis that is taken for granted.
  • usage: "any society is built upon certain assumptions"
  • synonyms: assumption, supposal
• The cognitive process of supposing.
  • synonyms: supposal

• (n.) That which is supposed; hypothesis; conjecture; surmise; opinion or belief without sufficient evidence.
• (n.) The act of supposing, laying down, imagining or considering as true or existing, what is known not to be true or what is not proved.