Most inferior; doing the least good.I think putting oil on a burn is the worst thing you can do.
Most unfavorable.That's the worst news I've had all day.
Most harmful or severe.The worst storm we had last winter knocked down our power lines.
Most ill.I'm feeling really ill — the worst I've felt all week.
Used with the definite article and an implied noun: something that is worst.None of these photographs of me are good, but this one is definitely the worst.
In the worst way: most badly, most ill.My sore leg hurts worst when it's cold and rainy.This is the worst-written essay I've ever seen.She's the worst-informed of the lot.
Full definition of worst
Verb
(archaic, transitive) To make worse.
(dated, intransitive) To grow worse; to deteriorate.
unknown date Jane Austen:Anne haggard, Mary coarse, every face in the neighbourhood worsting.
"The Worsting of the Hag. We all assemble on the village green, then we go from house to house banging on pots and pans and making a lot of noise. It's to drive out evil spirits for the coming year." The Twelve Days of Christmas, 2012, by Rhys BowenThe ... Philistines were worsted by the captivated ark.