Home
/
Dictionary
/
A House of Cards

A House of Cards.

English
idiom

Something fragile that is likely to fail or collapse.

Learn real English
for free!

Daily expressions with examples, clips, and quizzes:

Trusted by1.5M+English learners & teachers worldwide

What it means...

A structure or situation that looks impressive but is fragile and likely to collapse at any moment.

A house of cards is built on unstable foundations and can come crashing down with the slightest disruption.

It is used to warn that something relies on too many uncertain factors to be sustainable.

Use it when…

  • When a business plan or strategy depends on too many things going right simultaneously
  • When a relationship or agreement is held together by too many fragile assumptions
  • When warning that a seemingly impressive setup is actually very vulnerable to collapse

Don’t confuse with...

Wrong icon

"Built on Sand"

Founded on weak or unreliable foundations that will not support long-term stability

Wrong icon

"Smoke and Mirrors"

Something that looks impressive or real but is actually an illusion designed to deceive

Correct icon

"A House of Cards"

Something that appears solid but is dangerously fragile and likely to collapse

Where you’ll hear it

You’ll hear the "A House of Cards" idiom in real life — at work, in relationships, or in the media.

Work & Business

Meetings

A risk officer warns the board that the project financing is a house of cards with too many contingencies.

Relationships & Social Life

Advice / Support

A mentor tells a startup founder that his business model is a house of cards if it depends entirely on one client.

Media & Everyday Life

News

Analysts warn the tech giant's valuation is a house of cards built on speculative revenue projections.

Use it like this

Here’s how to use "A House of Cards" idiom naturally in real conversations, with real examples.

Work & Business

Raising Concerns

You

The whole plan depends on three things going perfectly — if any one fails, we're in trouble.

Boss

You're right — we have a house of cards here. Let's build in some contingencies.

Relationships

Honest Conversations

Friend

The relationship sounds like a lot of effort just to keep things together.

You

It kind of is — it feels like a house of cards sometimes.

Everyday Conversations

Opinions

Friend

Do you think the economy could really collapse the way some people are saying?

You

Parts of it are a house of cards — when trust goes, things unravel fast.

Last updated:
April 20, 2026

Become an Insider

Get exclusive invitations to try our new English online courses FOR FREE.

Enjoy special discounts and unique offers for club members only!

1
2

Tell us a bit about you to unlock more relevant content and insider perks.

Helps us tailor content to you.
Select an option
Select country
Select language
You’re in! Welcome to
the Insider Club.
Oops! Something went wrong. Please try again.
Unsubscribe
anytime.
Trusted by
1.5M+
English learners &
teachers worldwide
The Idiom Daily logoThe Idiom Daily Dictionary logo
The Idiom Daily © 2026
Cookie SettingsPrivacy Policy
The Idiom Daily logo