1
al máximo;lo más posible
1
at the most;at best
桜の花は数日、せいぜい一週間しか持たない。
Cherry blossoms last only for a few days, a week at the most.
2
to the utmost;as much as possible;as much as one can
狭い部屋をせいぜい広く使った。
I made the best of my small room.
Other forms
精精 【せいぜい】