Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “bad”

See all translations

bad

adjective  /bæd/ ( comparative worse  /wɜrs/, superlative worst  /wɜrst/) us  

bad adjective (UNPLEASANT)

not good; disappointing or unpleasant, or causing difficulties or harm: We heard the bad news about Dorothy’s illness. Flights were delayed because of bad weather. Too much salt is bad for you (= has a harmful effect on your health). Bad can also mean serious or severe: a bad accident/storm

bad adjective (LOW QUALITY)

of very low quality; not acceptable: bad manners We thought the hotel was bad and the food was terrible. That was one of the worst movies I’ve ever seen.

bad adjective (EVIL)

(of people or actions) evil or morally unacceptable: He’s not a bad person.

bad adjective (UNHEALTHY)

(of a person) ill or not well, or (of an illness) serious or severe: a bad back/heart a bad cough bad health He’s in really bad shape. He’s got bad arthritis and can hardly walk.
(Definition of bad from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of bad?
Add Cambridge dictionaries to your browser to your website

Definitions of “bad” in other dictionaries

Word of the Day

ditto

used to agree with something that has just been said, or to avoid repeating something that has been said

Word of the Day

Euphemisms (Words used to Avoid Offending People)

by Kate Woodford,
March 04, 2015
​​​ We recently looked at the language that we use to describe lies and lying. One area of lying that we considered was ‘being slightly dishonest, or not speaking the complete truth’. One reason for not speaking the complete truth is to avoid saying something that might upset or offend people. Words and

Read More 

snapchat verb

March 02, 2015
to send someone a message using the photomessaging application Snapchat We used to have a thing until he got a girlfriend. now

Read More