bad

/bæd/ adjective (worse, worst)

Definition

NOT PLEASANT › not pleasant: bad weather bad news a bad dream My phone bill was even worse than I'd expected. He's in a bad mood today.

LOW QUALITY › of low quality: bad behaviour The service was really bad. He's always been bad at maths.

SEVERE › very serious or severe: a bad injury the worst flooding for years

NOT LUCKY › not lucky, not convenient, or not happening how you would like: It was just bad luck that she heard us. Is this a bad time to ask?

not bad › satisfactory: "There are about 10 people in a group." "Oh well, that's not bad." That's not bad for such a small company.

be bad for sb/sth › to be harmful for someone or something: Looking at a computer screen for too long can be bad for your eyes. The negative publicity has been bad for business.

feel bad about sth/doing sth › to feel guilty or sorry about something that has happened: I felt bad about letting her down.

too bad › mainly US informal used to say that you are sorry about a situation: "He didn't get the job." "Oh, that's too bad." › used to say that nothing can be done to change a situation: I know you don't want to go but it's too bad, we have to.

EVIL › evil: She's a really bad person.

NOT FRESH › Bad food is not fresh and cannot be eaten.

PAINFUL [always before noun] › If you have a bad arm, leg, heart, etc, there is something wrong with it and it is painful. → See also bad blood → See also be in sb's good/bad books

(Definition of bad adjective from the Cambridge Learner's Dictionary © Cambridge University Press)