Yes, meaner is a Scrabble word!

Adjective

1. Approximating the statistical norm or average or expected value

2. Characterized by malice

3. Having or showing an ignoble lack of honor or morality

4. Excellent

5. Marked by poverty befitting a beggar

6. (used of persons or behavior) characterized by or indicative of lack of generosity

7. (used of sums of money) so small in amount as to deserve contempt

8. Of no value or worth