creditable
Deserving respect or praise for good, solid effort or work.
Creditable means deserving respect or praise, even if not perfect or exceptional. When you do something creditable, you've done well enough that others recognize your effort and skill. A student might give a creditable performance in the school play: not the standout star, perhaps, but solid and respectable work that contributes to the show's success.
The word suggests competence and merit. A scientist might produce creditable research that advances understanding in her field, even if it doesn't win major awards. An athlete might have a creditable showing in a tournament, meaning they competed respectably and represented themselves well, even without winning.
Notice that creditable focuses on earning respect through genuine ability or effort. When something is creditable, people notice and appreciate the quality. A creditable attempt at solving a difficult math problem shows real understanding and thoughtful work.