This is the 3192nd most frequent Chinese word.
俗
Common, vulgar, or customary.
The word '俗' in this sentence describes behavior as being lacking refinement or elegance.
他的行为很俗。
His behavior is very vulgar.
Here, '俗' is part of the word '风俗', denoting traditional customs or practices.
这种风俗在这个地方很流行。
This custom is very popular in this place.
In this context, '俗气' implies a lack of sophistication, a colloquial usage describing artistic quality.