Naively idealistic in the support of philanthropic or humanitarian causes.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "do-good" in a sentence
"What began as a social group for men has evolved into a do-good organization that benefits an entire community."
"Voluntour vacations or do-good vacations are fast becoming a popular way to plan your excursions and volunteer."
"By taking a voluntour or do-good vacation, here are some benefits to you:"