complex

US /kɑːmˈpleks/
UK /kɑːmˈpleks/
"complex" picture
1.

consisting of many different and connected parts

:
•
The human brain is a highly complex organ.
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Solving this problem requires a complex approach.
:
intricatecomplicatedelaborateinvolvedtangled
:
simpleeasystraightforward
2.

difficult to understand or analyze

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The instructions were too complex for me to follow.
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His motivations are quite complex.
:
intricatecomplicatedperplexingpuzzlingabstruse
:
clearsimpleobvious
1.

a group of similar buildings or facilities on one site

:
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The resort is a large complex with multiple pools and restaurants.
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They are building a new shopping complex downtown.
:
compounddevelopmentcenterfacility
2.

a group of repressed feelings and memories that gives rise to abnormal behavior or mental states

:
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He has a complex about his height.
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She developed a guilt complex after the accident.
:
fixationobsessionneurosishang-up
:
complexityinferiority complexOedipus complex