of the poorest quality or the lowest standard; least good or desirable

he was the company's worst driver

the speech was the worst he had ever made

most severely or seriously

manufacturing and mining are the industries worst affected by falling employment

the most serious or unpleasant thing that could happen

when I saw the ambulance outside her front door, I began to fear the worst

get the better of; defeat

this was not the time for a deep discussion—she was tired and she would be worsted

of poor quality or a low standard

a bad diet

bad eyesight

not such as to be hoped for or desired; unpleasant or unwelcome

bad news

it was the worst day of his life

bad luck

failing to conform to standards of moral virtue or acceptable conduct

the bad guys

bad behaviour

(of a part of the body) injured, diseased, or painful

a bad back

(of food) decayed; putrid

everything in the fridge went bad

regretful, guilty, or ashamed about something

she feels bad about ending their engagement

I feel bad that our business is benefiting from something so horrible

worthless; not valid

he ran up 87 bad cheques

good; excellent

they want the baddest, best-looking Corvette there is

in an unsatisfactory, inadequate, or unsuccessful way

England have played badly this year

the war was going badly

used to emphasize the seriousness of an unpleasant event or action

the building was badly damaged by fire

in a guilty or regretful way

I felt badly about my unfriendliness