apocryphal ------ 可信度不高的（形容词）

英文释义

(adjective) Describing stories that are highly unlikely, but that often may be repeated and valued despite being obviously untrue.

例句

Many cultures cherish apocryphal stories about the magical powers of their ancient founders.

很多文化都有关于古代开国者的神奇力量的可信度不高的故事。