IPA: /ˈdɪm.nəs/
KK: /dɪm.nəs/
The condition of having low light or brightness, making things hard to see.
The dimness of the room made it difficult to read the book.
Dimness → It is formed from "dim" (from Old English *dimm*, meaning not bright or obscure) and "-ness" (meaning the state or quality of). The word "dimness" refers to the state of being not bright or having low light.
Think of the word 'dim' which means not bright, and remember that 'dimness' describes the quality of being not bright.