The difference between Complex and Difficult
When used as verbs, complex means to form a complex with another substance, whereas difficult means to make difficult.
When used as adjectives, complex means made up of multiple parts, whereas difficult means hard, not easy, requiring much effort.
Complex is also noun with the meaning: a problem.
check bellow for the other definitions of Complex and Difficult
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Complex as an adjective:
Made up of multiple parts; composite; not simple.
Examples:
"a complex being; a complex idea"
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Complex as an adjective:
Not simple, easy, or straightforward; complicated.
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Complex as an adjective (mathematics):
Of a number, of the form a + bi, where a and b are real numbers and i is a square root of −1.
Examples:
"complex function"
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Complex as an adjective (geometry):
A curve, polygon or other figure that crosses or intersects itself.
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Complex as a noun:
A problem.
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Complex as a noun:
A network of interconnected systems.
Examples:
"uxi [[military-industrial complex]]"
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Complex as a noun:
A collection of buildings with a common purpose, such as a university or military base.
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Complex as a noun:
An assemblage of related things; a collection.
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Complex as a noun (psychology):
A psychological dislike or fear of a particular thing.
Examples:
"Jim has a real complex about working for a woman boss."
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Complex as a noun:
An organized cluster of thunderstorms.
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Complex as a noun (chemistry):
A structure consisting of a central atom or molecule weakly connected to surrounding atoms or molecules.
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Complex as a noun (math):
A complex number.
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Complex as a verb (chemistry, intransitive):
To form a complex with another substance
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Complex as a verb (transitive):
To complicate.
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Difficult as an adjective:
Hard, not easy, requiring much effort.
Examples:
"However, the difficult weather conditions will ensure Yunnan has plenty of freshwater.'' [[File:However, the difficult weather conditions will ensure Yunnan has plenty of freshwater.ogg]]"
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Difficult as an adjective (often, _, of a, person, or a horse, etc):
Hard to manage, uncooperative, troublesome.
Examples:
"Stop being difficult and eat your broccoli—you know it's good for you."
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Difficult as an adjective (obsolete):
Unable or unwilling.
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Difficult as a verb (obsolete, transitive):
To make difficult; to impede; to perplex.
Examples:
"rfquotek Sir W. Temple"