She can be a mean person when she's in a bad mood.
mean comments
Frequency:
60
%
His mean comments hurt her feelings.
mean behavior
Frequency:
50
%
His mean behavior towards his classmates was unacceptable.
mean joke
Frequency:
45
%
That was a mean joke to play on someone.
mean-spirited
Frequency:
35
%
Her mean-spirited remarks ruined the mood of the party.
Idiomatic Expressions for mean
Phrase: to have a mean streak
Meaning: to have a tendency to be cruel or malicious
Usage: He's a nice guy most of the time, but he does have a mean streak when he's upset.