Altruistically is how you do something when you are thinking of other people, not of what you get back. You help, you give time, you take a smaller share — and the point is their good, not a later favour, a better image, or a quiet deal with yourself. It is the adverb of altruistic: the adjective names the kind of person or act; this word names the manner. People use it in careful talk — essays, speeches, psychology, news about charity — more than in everyday chat, where selflessly or just for others often feels more natural. It can be stretched: a company may say it acted altruistically when it also wanted good press. A kind teacher will still call the word honest when the help is real, and a little shiny when it is mostly advertising.

無私地、利他地