Humanitarian
Part of speech: noun
Definition: A person with such concerns; a philanthropist or do-gooder.
Part of speech: adjective
Definition: Concerned with people's welfare, and the alleviation of suffering; humane or compassionate.
Example sentence: Art to me is a humanitarian act and I believe that there is a responsibility that art should somehow be able to effect mankind, to make the word a better place.
Humanistic
Part of speech: adjective
Definition: Of or pertaining to humanism.