Looking for synonyms for not serious? We’ve got you covered! Here’s a list of other ways to say not serious. Want to learn how to say not serious professionally? Keep reading for examples and use cases. 1. Frivolous. Use when: Describing something lacking in seriousness or importance. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.