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complex

complicated
Adjective

As an adjective, the term describes a structural intricacy where the difficulty arises from the interdependence of various elements. It differs from complicated, which often suggests a confusing or disordered state, whereas complex implies a sophisticated, albeit difficult, architecture. As a noun, the word shifts from abstract structure to physical or psychological groupings. It can describe a spatial arrangement of architecture or a deeply embedded psychological knot that dictates a person's emotional reactions and self-perception.

💬Casual Conversation

🎬Tuesday afternoon, Chloe is sitting in a crowded university library.
Eleanor Smith

CHLOE I AM LOST. WHICH BUILDING IS THE MEDICAL COMPLEX?

Eleanor Smith
Chloe Smith
Chloe Smith

Omg grandma, just hang tight and I'll swing by to get you.

💡
Eleanor is using 'complex' as a noun referring to a group of medical buildings. Chloe uses the phrasal verbs 'hang tight' (wait patiently) and 'swing by' (visit briefly), reflecting her casual student persona compared to Eleanor's all-caps, tech-struggling style.

Meanings

Adjectivecomplicated

Consisting of many different and connected parts; not easy to analyze or understand.

"The instructions for assembling the furniture were far too complex."

Examples

This new software update is just too complex for me.

Look, the tax code is complex, but we can manage.

God, why is this plot so complex? I am lost!

Listen, your emotional baggage is way too complex for this.

Sir, the circuitry in this device is incredibly complex.

I think the chemical structure is a bit too complex.

Stop making this complex! Just tell me yes or no!

The geopolitical situation here is far more complex than expected.

Collocations & Compounds

complex system

a system with many interacting parts

The global climate is an incredibly complex system.

complex problem

a difficult issue requiring deep analysis

Solving urban poverty is a complex problem with no single answer.

complex network

a web of interconnected nodes

The neural pathways in the brain form a complex network.

complex process

a series of intricate steps

Photosynthesis is a complex process occurring at the cellular level.

complex arrangement

a detailed or ornate layout

The garden featured a complex arrangement of hedges and fountains.

Idioms & Sayings

a complex of insecurities

a group of related psychological issues or fixations

His inability to accept criticism stems from a complex of insecurities developed during childhood.

Related Words

Last Updated: June 8, 2026Report an Error