Don’t use adjectives. Use numbers.
Adjectives are imprecise, vague, and give the reader little insight into what’s really going on. They allow people to hide behind poor work or soften the news of a failed project.
Numbers, on the other hand, show us reality. And without a clear view of reality, it’s impossible to make good decisions.
P.S. This idea, of course, does not apply to fiction, love letters, or any other emotive writing. Numbers in those would be weird.