disinterested vs. uninterested
/dɪsˈɪntrəstɪd ˌvɜːrsəs ʌnˈɪntrəstɪd/
disinterested means impartial; uninterested means not interested
“A judge should be disinterested. He was uninterested in the topic.”
Origin: Disinterested = without self-interest; uninterested = lacking interest