conjectural
/kənˈdʒɛktʃərəl/
adjective
- Based on guesswork or incomplete information rather than solid evidence; involving a conclusion formed by guessing.
- The scientist warned that the early results were conjectural and needed further testing.
- Without more data, any explanation for the sudden drop in sales remains conjectural.
- The historian admitted that her theory about the ancient king's motives was purely conjectural.