solidan

1. decent; fairly good
   Ima solidnu platu i dobro radno vreme. — He has a decent salary and good working hours.
   Tim je odigrao solidnu utakmicu. — The team played a solid game.
2. (of an object, building) solid; sturdy
   Kupili smo solidne cipele za planinu. — We bought sturdy boots for the mountains.
   Kuća je stara, ali solidno građena. — The house is old, but solidly built.
3. (of a person, company) reliable; dependable
   To je solidna firma, radimo sa njima godinama. — It's a reliable company; we've worked with them for years.

In everyday speech it most often means "decent, fairly good" rather than "impressive".