indistinct
adj. 模糊的，不清楚的；朦胧的；难以清楚辨认的
例句
The lettering is fuzzy and indistinct.
书写的文字模糊难认。
《柯林斯英汉双解大词典》
The white of two letters in her lap grew indistinct.
她膝上那两封信的白色已模糊了。
A color or pattern that is relatively indistinct in one kind of light may be quite conspicuous in another.
在某种光照下相对较难辨认的颜色或式样，在另外一种光照下也许相当显眼。
