In today's usage, disinterested most often means "not biased," whereas uninterested simply means "not interested." Interestingly, when these words were first introduced their meanings were the reverse, with disinterested originally meaning "lacking interest," and uninterested meaning "unbiased."
The adjectives ‘disinterested’ and ‘uninterested’ are often misconstrued and are used synonymously because of their relationship with the word interest. While ‘disinterested‘ refers to detached or uninvolved in something, ‘uninterested‘ is just the opposite of the word interested which indicates the absence of interest in something
