But what vs However

When to use each in English, with meaning, register, and examples.

But what

Top 3,000 (common)

However

Top 1,000 (very common)A1adverb
Most common: However
 But whatHowever
Pronunciation🇬🇧 //bʌt wɒt//🇺🇸 //bʌt wɑt//🇬🇧 /["/haʊˈevə(r)/"]/🇺🇸 /["/haʊˈevər/"]/
MeaningA phrase used to introduce a contrast or question.but; shows contrast between two ideas.
ExampleI understand your point, but what if we consider the other side?He was feeling bad. He went to work, however, and tried to concentrate.
RegisterNeutralNeutral
How commonTop 3,000 (common)Top 1,000 (very common)
CEFR level-A1
Part of speechadverb
Collocationsbut what about, but what ifhowever, you should, however, it is important, however, I believe
Antonyms-therefore, consequently
Common mistakesUsing in overly formal contexts, where other phrases are more suitable., Incorrectly placing 'but' at the start of a sentence when it should connect to a clause.Confused with 'how ever' which means in what way., Omitting a comma before 'however' when it starts a sentence., Using 'however' inappropriately in very casual contexts.
Usage notes"But what" is typically used informally to question or contradict something previously said. It's less formal than other phrases.Use 'however' to introduce a contrasting idea in a sentence. It's suitable in both spoken and written English but more common in formal writing. Avoid using it at the beginning of informal conversations.

See it in real clips

But what
However

Frequently asked questions: But what vs However

What's the difference between But what and However?

But what: A phrase used to introduce a contrast or question. However: but; shows contrast between two ideas.

Which is more common: But what and However?

However is the most common in everyday English.

Can you show an example of each?

But what: I understand your point, but what if we consider the other side? However: He was feeling bad. He went to work, however, and tried to concentrate.

Can I use But what and However interchangeably?

Not always. But what and However are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons