Meaning of “bad” - Learner’s Dictionary


adjective uk us /bæd/ (worse, worst)

A1 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.

A2 of low quality:

The service was really bad.
He's always been bad at UK maths/US math.

B1 very serious or severe:

a bad injury
the worst flooding for years

B1 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

A2 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

A2 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

B1 to feel guilty or sorry about something that has happened:

I felt bad about letting her down.
too bad

B1 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.

B1 evil:

She's a really bad person.

B2 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 , be in sb's good/bad books

(Definition of “bad” from the Cambridge Learner’s Dictionary © Cambridge University Press)