|Noah Webster's Dictionary|
1. (n.) The state or quality / being dim; lack of brightness, clearness, or distinctness; dullness; obscurity.
2. (n.) Dullness, or want of clearness, of vision or of intellectual perception.
Dimness (2 Occurrences)
Isaiah 8:22 And they shall look unto the earth; and behold trouble and darkness, dimness of anguish; and they shall be driven to darkness. (KJV WBS YLT)
Isaiah 9:1 Nevertheless the dimness shall not be such as was in her vexation, when at the first he lightly afflicted the land of Zebulun and the land of Naphtali, and afterward did more grievously afflict her by the way of the sea, beyond Jordan, in Galilee of the nations. (KJV WBS)