Stellar/ˈstelər/ Definition 1 of 2Pro Tip 1/3Praise and Admiration Used to express a high level of praise for someone's work or achievement. Her latest novel received stellar reviews from critics. Pro Tip 2/3Metaphoric Shine Often metaphorically relates to stars, suggesting brilliance and exceptional quality. He has a stellar reputation in his field. Pro Tip 3/3Informal Use Appropriate for casual and creative contexts but can be used formally too. The team's effort was stellar this season!