Dunno

Other ways of saying "I don’t know" in English

How should I know?

Don’t ask me

Search me

(used when you do not know something and you feel annoyed that someone is asking you about it)

• ‘Who left this rubbish all over the table?’ ‘How should I know? I’ve only just come home.’

• ‘Why didn’t he call me himself?’ ‘Don’t ask me. I’m only the messenger.’

• ‘Why didn’t he say he wasn’t coming?’ ‘Search me. He never tells me anything.’

Your guess is as good as mine

( used for saying that you know as little about something as the person who asked you about it)

• ‘Do you think the store will be open on Sunday?’ ‘Your guess is as good as mine.’

It beats me

(used for saying that you do not know or understand something)

• ‘Why did he do such a stupid thing?’ ‘It beats me.’

Dunno

(used informally, in spoken language)

• ‘Are you coming out later?’ ‘Dunno. Depends on the weather.’

Not as far as I know

(used for saying that something may be true, but you do not have enough information to know whether it is or not)

• ‘Has James left the company? I haven’t seen him for ages.’ ‘Not as far as I know, but I haven’t seen him recently either.’

Who knows?

It’s anyone’s guess

(used for saying that you don’t know something because it is impossible for anyone to know it)

• ‘When will this situation ever be resolved?’ ‘Who knows? It’s been going on for so long now.’
• ‘How the situation will develop from here is anyone’s guess.’

I have no idea

I haven’t a clue

I haven’t the faintest idea

• ‘What time does the film start?’ ‘I have no idea. Why don’t you call the cinema?’

• ‘I don’t suppose you know where Braganza Street is?’ ‘I haven’t a clue. Sorry.’

• ‘Could somebody please explain how this car ended up in my driveway?’ ‘I haven’t the faintest idea.’