bright vs undimmed

bright and undimmed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
bright	No	Yes	No	Yes
undimmed	No	Yes	No	No

As adjectives, bright and undimmed are synonyms defined as:

bright (adjective)	undimmed (adjective)
emitting or reflecting light readily or in large amounts	not made dim or less bright
not made dim or less bright
likely to turn out well in the future
having strong or striking color
splendid
characterized by happiness or gladness
characterized by quickness and ease in learning
having lots of light either natural or artificial
made smooth and bright by or as if by rubbing; reflecting a sheen or glow
clear and sharp and ringing

bright (adverb)	undimmed (adverb)
with brightness