[citrate05]

But the Big Five Inventory [1] does explicitly ask if subjects consider themselves to sometimes be cold, distant, rude, unkind, selfish, or inconsiderate of others, and these answers are all used to compute their (dis)agreeableness scores. Similar questions also show up in other inventories. So, without even getting into any other behaviors these traits might correlate with, the Big 5 definition of "disagreeable" extends well beyond literally just tending to disagree with others.

[1] https://arc.psych.wisc.edu/self-report/big-five-inventory-bf...