adj.不可知（辨认）的；不能（可）认识的； 难觉察的

The strange symbol was incognizable to everyone in the room.
这个奇怪的符号在房间里没有人能认得出来。
The old man's handwriting was so illegible that it was incognizable.
这位老人的笔迹如此难以辨认，以至于无法辨认。
The ancient language in the book was incognizable, and I needed a translator to understand it.
书中的古语是无法辨认的，我需要一个翻译来理解它。
The painting was so deteriorated that the original subject was incognizable.
这幅画已经严重损坏，原始主题无法辨认。
The old photograph was too faded to be incognizable.
这张旧照片太褪色了，无法辨认。
The identity of the thief was incognizable due to the poor quality of the security footage.
由于监控录像质量差，小偷的身份无法辨认。
The car was so heavily modified that its original make and model were incognizable.
这辆车经过了大量改装，原来的型号和款式无法辨认。
The city had changed so much over the years that many of the buildings were incognizable.
多年来，这座城市发生了太多变化，许多建筑物都无法辨认。
The sound of the bird's song was incognizable because of the loud background noise.
鸟儿的歌声因为背景噪音太大而无法辨认。
The artist's distorted depiction of the human form made it incognizable.
艺术家对人形的扭曲描绘使它无法辨认。