Across
- 3. synonym as to "think"
- 4. an idea that wasn't fully proved
- 7. seems possible to be true
- 9. unlikely to be true
Down
- 1. likely to be untrue
- 2. more than one explanation is possible
- 5. to disappear
- 6. antonym of fact
- 8. acronym for Unindentified flying object