supposition
/ˌsʌpəˈzɪʃən/
noun
- An idea or belief that is assumed to be true, often without proof or strong evidence.
- We should not act on a mere supposition; we need facts first.
- His argument was based on the supposition that everyone would agree with him.
- The detective worked from the supposition that the thief was someone inside the house.
Synonyms