conjectural
US /kənˈdʒek.tʃɚ.əl/
UK /kənˈdʒek.tʃɚ.əl/

1.
konjektural, spekulatif
based on or involving conjecture; speculative.
:
•
The report contained many conjectural statements about the future.
Laporan itu mengandungi banyak kenyataan konjektural tentang masa depan.
•
His theory remains highly conjectural without further evidence.
Teorinya kekal sangat konjektural tanpa bukti lanjut.