Also, while I love the idea, I have to be pedantic: cool, hard, hot, sharp, and weird are definitely not nouns.
A few of those can act as nouns, though. To continue the pedantry, I guess.
(1a) Balls lost his cool.
(1b) Balls lost his cat.
(2) Twice is cool/hot/hard/sharp/weird.
In (1), cool is acting as a noun. In (2), the verb 'be' is taking an adjective as a noun. Which is technically considered a substantive adjective, but that's just a fancy way of saying that the adjective is acting like a noun.
Similarly:
(3a) Roark is volatile.
(3b) Roark is a volatile motherfucker.
In (3), volatile is an adjective. But in (3a), it's a substantive adjective (acting as a noun) and in (3b) it's just an adjective. This is a shift in function. The category of a word never changes, but its function can.
This is where dictionaries trick you. They will list the same word multiple times under many categories. This is incorrect.
For example, Alaska will be listed in the noun and adjective category:
(4a) Mary is from Alaska.
(4b) Mary is an Alaska resident.
In (4), Alaska remains firmly in the noun category. In (4a), it is a noun functioning as a noun. In (4b), it is a noun functioning as an adjective. In Standard English, 'Alaskan' would be the 'correct' thing to use. Note that we have the inverse situation here:
(5a) Mary is an Alaskan.
(5b) Mary is an Alaskan citizen.
In (5), Alaskan remains firmly in the
adjective category. In (5a), it's an adjective functioning as a noun. In (5b), it's an adjective functioning as an adjective.
Dig?