Definition
even when considered in the most positive way
The food was bland at best, and at worst completely inedible.
These treatments will bring only moderate pain relief at best.
Her novels were considered lowbrow at best, positively tacky at worst.
at the highest standard that can be achieved
The documentary was an example of investigative journalism at its best.
To watch these films is to see animation at its best.
At its best, architecture can transform lives.