Optimist International is a global service organization that works towards bringing positivity into the world by helping communities and individuals. Some synonyms for the word Optimist International could be 'hopeful global,' 'positive force,' 'uplifting collective,' 'worldwide positivity movement,' 'global optimism alliance,' and 'international positive thinkers.' These words reflect the values and beliefs of Optimist International, which aims to bring positive change to the world. The organization's mission is to serve the community and youth through various projects, programs, and initiatives. Optimist International believes in a brighter future and works tirelessly towards a world full of hope, positivity, and optimism.