Complication

/ˌkɒmplɪˈkeɪʃən/

nounIntermediateCommonGeneral

Definitions

3 meanings
1

A factor or situation that makes something difficult or complex, or that makes a problem worse.

/ˌkɒmplɪˈkeɪʃən/

nounnegativeIntermediate
General

A factor that makes something more difficult.

The unexpected illness caused a complication in the family's vacation plans.

💡 Simply: Imagine you're trying to bake a cake, but then you run out of eggs. That's a complication – something unexpected that makes things harder.

👶 For kids: Something that makes a problem or task harder.

More Examples

2

One major complication was the lack of funding for the project.

3

The complications of the legal case are expected to take years to resolve.

How It's Used

Medical

"The patient developed a complication after surgery."

Business

"The project faced several complications due to unforeseen issues."

Relationships

"Their relationship was a complication they were unprepared for."

2

An adverse or secondary consequence that results from a medical treatment or procedure.

/ˌkɒmplɪˈkeɪʃən/

nounnegativeIntermediate
Medical

An undesirable secondary effect of a medical treatment.

The surgery carried a risk of serious complications.

💡 Simply: After you get a vaccine, sometimes you might get a fever. That's a possible complication of the vaccine – it's a side effect.

👶 For kids: When something goes wrong after you get medicine or a doctor does something to help you.

More Examples

2

The doctor warned her about the potential complications of the treatment.

3

One of the complications was an infection at the incision site.

How It's Used

Medical

"The drug had several possible complications."

Tip:Think of a medical procedure gone wrong.
3

An intricate or complex situation or matter.

/ˌkɒmplɪˈkeɪʃən/

nounneutralIntermediate
General

The financial regulations added several complications to the business plan.

💡 Simply: Imagine a detective trying to solve a mystery, with lots of clues and suspects. All those clues are the complications that make the mystery harder to figure out.

👶 For kids: When something is hard to understand because it has lots of parts.

More Examples

2

The case involved many layers of complications, making it difficult to find a solution.

3

Their relationship became rife with complications.

How It's Used

General

"The situation has many legal complications."

Relationships

"Adding a child introduced a new layer of complications."

Tip:Think of untangling a complex situation or an intricate plot.

From Late Latin *complicatio* ('a folding together, complication'), from the verb *complicare* ('to fold together, intertwine'), from *com-* ('together') + *plicare* ('to fold').

The word 'complication' has been used since the 16th century, initially referring to a complex or intricate state of affairs.

Memory tip

Think of a complicated knot – each twist is a complication.

Base: complicate
complicatoncomplicasion

Usage

40%Spoken
60%Written