did you mean incandescent in your last post or was that a typo
This is actually a great question! I sort of reflexively used "incandescent" as a synonym for "brilliant (fury)" and didn't think of why a word literally meaning "glowing" stuck in my hand as shorthand for "angry", so this ask made me look it up
Turns out that "incandescent" used LITERALLY as an adjective means "bright, brilliant, glowing, dazzling", and used FIGURATIVELY it can be applied to almost any emotion or expression of feeling to heighten it- like how "he said hotly" means "angry" without SAYING "angry", or "she said brightly" means "energetic" without SAYING "energetic".
So someone can- figuratively- be incandescent with joy, or have an incandescent smile, or simply APPEAR incandescent.
But speaking out of anger, I reflexively wrote that "something infuriating has happened- I am incandescent", so the reader's only clue to my meaning g would have been the context of the previous paragraph.
Which is actually fascinating, because it implies that 1. I've READ and HEARD so many others say "incandescent with rage" so often that my brain equivocated it with "rage", suggesting that over time the word itself might completely change meaning if enough people start slipping into a similar pattern, and
2. For some reason, when we were first creating language, we decided that "hot, bright, fiery, burning" were ENERGETIC before even fully understanding the science behind energy, and that conversely, "Coldly, glacial, icy, frosty" were words for FLAT, EMPTY, VOID"
And more median words like "warmly" or "cooly", just like moderate temperatures, are linked to moderate emotion
Which I can only guess has something to do with the human circulatory system? A rush of hot blood when angry, a warm glow when comfortable, and icy when shocked or upset.
And thinking of THAT, I find myself wondering if there are any languages that work the opposite way, where HOT is flat and COLD is energetic and wild