“According to our citation files, disinterested is most commonly used to mean “not biased; free from selfish motives,” while uninterested is commonly used to mean “not interested.” Yet when these words entered the language, uninterested meant “not biased; free from selfish motives” and disinterested meant “not interested.””
Click: The Truth About ‘Disinterested’ and ‘Uninterested’ | Merriam-Webster for the rest of the article.
Spiritual Wrestlings 