Bad Definition & Meaning | Dictionary.com

of poor or inferior quality; defective; deficient: a bad diamond; a bad spark plug.

of poor or inferior quality; defective; deficient: a bad diamond; a bad spark plug.

There is no such thing as a bad boy.

having a wicked or evil character; morally reprehensible: There is no such thing as a bad boy.

having a wicked or evil character; morally reprehensible: There is no such thing as a bad boy.

not good in any manner or degree.

not good in any manner or degree.

inadequate or below standard; not satisfactory for use:

bad heating; Living conditions in some areas are very bad.

inaccurate, incorrect, or faulty:

a bad guess.

invalid, unsound, or false:

a bad insurance claim; bad judgment.

causing or liable to cause sickness or ill health; injurious or harmful:

Too much sugar is bad for your teeth.

suffering from sickness, ill health, pain, or injury; sick; ill:

He felt bad from eating the green apples.

not healthy or in good physical condition; diseased, decayed, or physically weakened:

A bad heart kept him out of the army.

tainted, spoiled, or rotten, especially to the point of being inedible:

The meat is bad because you left it out of the refrigerator too long.

having a disastrous or detrimental effect, result, or tendency; unfavorable:

The drought is bad for the farmers. His sloppy appearance made a bad impression.

causing or characterized by discomfort, inconvenience, uneasiness, or annoyance; disagreeable; unpleasant:

I had a bad flight to Chicago.

easily provoked to anger; irascible:

a bad temper.

cross, irritable, or surly:

If I don’t have my morning coffee, I’m in a bad mood all day.

more uncomfortable, persistent, painful, or dangerous than usual; severe:

a bad attack of asthma.

causing or resulting in disaster or severe damage or destruction:

a bad flood.

regretful, contrite, dejected, or upset:

He felt bad about having to leave the children all alone.

disobedient, naughty, or misbehaving:

If you’re bad at school, you’ll go to bed without supper.

disreputable or dishonorable:

He’s getting a bad name from changing jobs so often.

displaying a lack of skill, talent, proficiency, or judgment:

a bad painting; Bad drivers cause most of the accidents.

causing distress; unfortunate or unfavorable:

I’m afraid I have bad news for you.

not suitable or appropriate; disadvantageous or dangerous:

It was a bad day for fishing.

inclement; considered too stormy, hot, cold, etc.:

We had a bad winter with a lot of snow.

disagreeable or offensive to the senses:

a bad odor.

exhibiting a lack of artistic sensitivity:

The room was decorated in bad taste.

not in keeping with a standard of behavior or conduct; coarse:

bad manners.

(of a word, speech, or writing)

  1. vulgar, obscene, or blasphemous:

    bad language.

  2. not properly observing rules or customs of grammar, usage, spelling, etc.; incorrect:

    He speaks bad English.

unattractive, especially because of a lack of pleasing proportions:

She has a bad figure.

(of the complexion) marred by defects; pockmarked or pimply; blemished:

bad skin.

not profitable or worth the price paid:

The land was a bad buy.

Commerce

.

deemed uncollectible or irrecoverable and treated as a loss:

a bad debt.

ill-spent; wasted:

Don’t throw good money after bad money.

counterfeit; not genuine:

There was a bad ten-dollar bill in with the change.

having the character of a villain; villainous:

In the movies the good guys always beat the bad guys.

Sports

.

failing to land within the in-bounds limits of a court or section of a court; missing the mark; not well aimed.

Slang

.

outstandingly excellent; first-rate:

He’s a bad man on drums, and the fans love him.