Quick answer: “In the Dark” means to be unaware of or uninformed about something important.
In the dark — to be without important information; to be uninformed or kept unaware of something deliberately or accidentally.
Origin & History
The idiom draws on the universal metaphor of darkness representing ignorance and light representing knowledge. This connection appears across many languages and cultures. In English, the figurative sense of "in the dark" meaning ignorant has been recorded since at least the 17th century in philosophical and literary writing.
The common variation "keep someone in the dark" implies deliberate withholding of information, adding a layer of intent. The phrase is used today across journalism, business, and everyday speech to describe situations where people lack access to important facts or decisions that affect them. Idioms like this are the kind of expression documented in general reference works such as the Cambridge Dictionary, which record how figurative meanings develop in everyday English.
Example Sentences
| Sentence | Context |
|---|---|
| Management kept the employees in the dark about the planned redundancies. | Workplace transparency |
| I was completely in the dark about the surprise party until I walked through the door. | Social situation |
| The government has been keeping the public in the dark about the full cost of the project. | Politics |
| Don't leave me in the dark — what did the doctor say? | Personal concern |
| Investors were left in the dark as the company delayed its quarterly results. | Finance |
| She felt completely in the dark when her friends made plans without telling her. | Social exclusion |
Use It in Conversation
Dialogue Example
Jamie: Have you heard anything about the office restructure?
Priya: Nothing at all — they're keeping us completely in the dark. I don't even know if my department is affected.
Jamie: Same here. Hopefully they'll say something at the meeting tomorrow.
How to Use It
This idiom is most commonly used in the pattern "keep someone in the dark" (deliberate) or "be in the dark" (general state of not knowing). It can be used about any situation where important information is missing or withheld. It is not used to describe physical darkness — it always refers to a lack of knowledge or information.
Common Mistakes
Mistakes to Avoid
They kept us in dark about the results.
They kept us in the dark about the results. — Always include the article "the".
I was in the dark of what was happening.
I was in the dark about what was happening. — Use "about", not "of".
Similar Idioms
Practise This Idiom
Want to understand the grammar behind this? Explore our Grammar guides.
Quick Check: In the Dark
2 questions — test what you just learned.
1. What does “In the Dark” mean?
2. Complete the sentence: “Management kept the employees _____ about the planned redundancies.”
Frequently Asked Questions
What does "in the dark" mean?
"In the dark" means to be unaware of something or kept without important information. If someone keeps you in the dark, they deliberately do not tell you what is happening.
Where does "in the dark" come from?
The metaphor draws on the association of darkness with ignorance and light with knowledge. The figurative use has been recorded in English since at least the 17th century, appearing in literary and philosophical texts.
Can you give an example of "in the dark" in a sentence?
Example: "Management kept the employees in the dark about the planned redundancies." The idiom conveys that information was deliberately withheld.
Is "in the dark" formal or informal?
"In the dark" is neutral and versatile. It works in everyday conversation, business emails, journalism, and semi-formal writing. It is understood across all English-speaking regions.
What CEFR level is "in the dark"?
This idiom is typically introduced at B1–B2 level. Its straightforward metaphor makes it accessible to intermediate learners, and it is extremely common in both spoken and written English.
What are common mistakes with "in the dark"?
The most common error is omitting the article: say "in the dark", not "in dark". Also note that you keep someone in the dark (not "at the dark" or "under the dark").
What idioms are similar to "in the dark"?
Similar expressions include "out of the loop" (not included in a group's information), "none the wiser" (still not understanding after being told), and "left in the lurch" (abandoned without help or information).
How do I practise idioms like "in the dark"?
Try LexFizz's Flip Tiles and Flash Cards. Write sentences about situations where you were not given important information, using the idiom naturally.
Can "in the dark" be used in writing?
Yes. It is common in news articles, business reports, and informal writing. The phrase "kept in the dark" is especially frequent in journalism when describing lack of transparency.
Is "in the dark" used the same way in British and American English?
Yes, the idiom is identical in meaning and usage across British and American English. It is universally understood throughout the English-speaking world.