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devil is in the details

ˈdevəl ɪz ɪn ðə dɪˈteɪlz

Business
neutral
intermediate
Literally:
The devil hides within the small details

What does "devil is in the details" mean?

  1. Small details in a plan or project can cause unexpected problems
  2. Something that seems simple may become complicated when you examine the specifics

Examples

  • The contract looks fine, but the devil is in the details.
  • Review everything carefully—the devil is in the details.
  • The project seemed easy until we realized the devil was in the details.

Origin

A variation of the older phrase 'God is in the details' attributed to architect Ludwig Mies van der Rohe. The 'devil' version emphasizes that overlooked details can cause failure.

How to use it

Common warning about overlooking important specifics. Often used in legal, business, and technical contexts.

Similar expressions

watch the fine print
sweat the small stuff

Opposites

big picture thinking

Related idioms

  • on the same page

    In agreement or having the same understanding

  • cut to the chase

    To get to the point without wasting time

  • hit the ground running

    To start a new job or activity with immediate effectiveness

  • in the loop

    Included in the flow of information

  • the bottom line

    The most important point or factor

  • get up to speed

    To become fully informed about a situation

Use it in a practice answer

Try "devil is in the details" in a CELPIP-style Speaking or Writing task. The AI feedback tells you whether your word choice worked.

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