1. at worst - Adverb
2. at worst - Phrase
under the worst of conditions
Source: WordNetNostalgia is one of the legitimate and certainly one of the most enduring of human emotions; but the politics of nostalgia is at best distracting, at worst pernicious. Irving Kristol
The whole history of computers is rampant with cheerleading at best and bigotry at worst. Larry Wall
However, in recent years our nation has seen a sizable influx of illegal immigration that at best highlights some alarming inadequacies and at worst indicates a broken system. Spencer Bachus
Stones are checked every so often to see if any have split or at worst exploded. An explosion can leave debris in the elements so the firing has to be abandoned. Andy Goldsworthy
Her eyes met his, but she looked quickly away; entangling gazes with Will was confusing at best, dizzying at worst. Cassandra Clare
To believe Christianity stands in opposition to slavery is at best to think anachronistically and at worst to not understand Christianity. Derrick Jensen