I think all the links in the first two sections in the What Is Scala[0] docs give the flavor pretty well. It contains a full (and not small) set of OO language functionality, alongside an even more full-featured functional language.

There are a lot of adjectives you can use to describe Scala - mostly good ones! - but "small" just isn't one of them.

0: https://docs.scala-lang.org/tour/tour-of-scala.html#what-is-...