/ dɪsˈɪntrəstɪd; NAmE ; -trestɪd/ adjective
1.
not influenced by personal feelings, or by the chance of getting some advantage for yourself
SYN impartial , objective , unbiased :
a disinterested onlooker / spectator
Her advice appeared to be disinterested.
2.
( informal ) not interested
➡ note at interested
► dis·in·ter·est·ed·ly adverb
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WORD ORIGIN
early 17th cent.: past participle of the rare verb disinterest rid of interest or concern , from dis- (expressing removal) + interest .