I've heard "Don't use adjectives" but not qualified in that way, which makes more sense. "Show, don't tell" without any adjectives can only be pure narration o

I've heard "Don't use adjectives" but not qualified in that way, which makes more sense. "Show, don't tell" without any adjectives can only be pure narration of events and metaphor. Maybe that is good. But it can take more words to say the same thing, and it's difficult. A good exercise though.