Learn English | A new lesson every week
Book your course now

Dark Idioms

Average: 3.7 (50 votes)

Dark is an adjective which is the opposite of bright. Dark things have very little light. In idioms, dark often refers to mystery.

Let's take a look at these four common dark idioms.

In the dark

When you are in the dark about a situation, you do not know anything about it. You are uninformed about it. When we keep someone in the dark about something, we do not tell them something or keep a secret from them.

I'm sorry I have no idea about what's happening, I'm as in the dark as you.
I only found out that Jenny was pregnant yesterday, I was in the dark until then.
James kept his wife in the dark about the surprise party he was organising for her.

A shot in the dark

When we take a shot in the dark, we take a guess at something. For example when someone asks us a question and we do not know the answer, we take a guess. That guess is a shot in the dark. We also use the phrase a wild guess.

Wow, I guessed the correct answer; it was a shot in the dark!
How many people live in Canada? I'll take a shot in the dark and say 50 million.

A leap in the dark

You take a leap in the dark when you do something without knowing what the result will be.

Opening our own restaurant was a leap in the dark; we did not know how successful it would be.
She took a leap in the dark add decided to go abroad by herself for the first time.

A dark horse

When someone is a dark horse they have a skill or ability that most people do not know. It also used to describe someone who may win an event they are not expected to win (They surprisingly win a completion when people thought they would not).

I didn't know Thomas sang Opera. He's a dark horse!
I think Colombia are dark horses to win the next World Cup. I think they have a much better chance than people think.

Now complete these dark idiom sentences:


  • 1) Simon won a poetry competition, I didn't even know he wrote poems! He's a dark ___.

  • 2) I can't answer your question, but I'll take a ___ in the dark.

  • 3) Getting married can be a ___ in the dark.

  • 4) I don't like being ___ in the dark about work matters. I like to be informed.