not influenced by personal feelings, or by the chance of getting some advantage for yourself (Oxford)
having no personal involvement or receiving no personal advantage, and therefore free to act fairly (Cambridge)
بغیر مفاد کے ,غیر جانبداری
Her advice appeared to be disinterested. (Oxford)
I was merely a disinterested spectator in the whole affair. (Oxford)
Disinterested spectator
Unprejudiced
Uninvolved
Interested
Fascinated
Disinterest
Disinterestedly