Is 'bad' formal or informal?

It is neutral and very common. You can use it in speaking, writing, and everyday conversation.

What is the difference between 'bad' and 'poor'?

'Bad' is broader. 'Poor' usually means low quality, while 'bad' can also mean harmful or morally wrong.

Can I say 'I am bad'?

Yes, but it can sound negative. It may mean you are not skilled at something, or it may sound like self-criticism.

Is 'bad' used in academic writing?

Yes, but choose a more exact word when possible. In academic writing, 'poor', 'harmful', or 'incorrect' may be clearer.

← Dictionary

bad

/bæd/

IELTSAcademic

adjective

Something bad is unpleasant, harmful, low in quality, or morally wrong. It can describe people, actions, situations, taste, weather, or health.

The food went bad overnight.
That was a bad decision.
She felt bad after the argument.

noun

Bad means harm, wrongdoing, or something unpleasant. It is common in phrases like 'for better or worse' and 'the bad'.

He only noticed the bad after the deal.
The movie showed the battle between good and bad.
Try to focus on the good, not the bad.

Adinary Nuance

Bad is broader and more general than words like 'awful', 'terrible', or 'poor'. It can describe moral judgment, quality, health, or feelings. Use 'poor' for weak quality, 'awful' for very unpleasant things, and 'sad' for feelings.

In other languages

Vietnamese: xấu
Spanish: malo
Chinese: 坏的
Japanese: 悪い
Korean: 나쁜

Etymology

Bad is an old English word with uncertain origin. It has been used in English since before the 12th century.

Common phrases

bad newsbad ideabad habitbad mood

Synonyms

poor awful terrible unpleasant wrong

Related words

good evil harm mistake problem

Frequently asked questions

Is 'bad' formal or informal?: It is neutral and very common. You can use it in speaking, writing, and everyday conversation.
What is the difference between 'bad' and 'poor'?: 'Bad' is broader. 'Poor' usually means low quality, while 'bad' can also mean harmful or morally wrong.
Can I say 'I am bad'?: Yes, but it can sound negative. It may mean you are not skilled at something, or it may sound like self-criticism.
Is 'bad' used in academic writing?: Yes, but choose a more exact word when possible. In academic writing, 'poor', 'harmful', or 'incorrect' may be clearer.