in a best-case scenario(In a best-case scenario, this could mean hundreds of millions of dollars a year steered toward solving affordable energy needs in bush ... | In a best case scenario, this could mean hours of work. Alexander Demidov)
at best(The Administration's response to this crisis has been tepid at best. • Ratings can at best be the verdict of the sampled population, never the gospel's truth. • The government is at best only giving lip service to stopping the violence.4uzhoj)