altruistic
adjective uk/ˌæl.truˈɪs.tɪk/ us/ˌæl.truˈɪs.tɪk/
利他的，无私心的
showing a wish to help or bring advantages to others, even if it results in disadvantage for yourself
I doubt whether her motives for donating the money are altruistic - she's probably looking for publicity. 我怀疑她捐钱的动机是否出于无私——很可能是沽名钓誉罢了。
Synonym: selfless
Opposites: egocentricegoisticself-centred