A statement that is conjectural is based on information that is not certain or complete.
例句
There is something undeniably conjectural about such claims.这类声明中有些东西绝对是凭空臆测。
英英词典释义
Adjective
1. based primarily on surmise rather than adequate evidence;
"theories about the extinction of dinosaurs are still highly conjectural""the supposed reason for his absence""suppositious reconstructions of dead languages""supposititious hypotheses"