If something is sophisticated, it's complicated and intricate. The inner workings of a computer are sophisticated. Sophisticated can also refer to having good taste. Either way, sophisticated things are impressive.

Sophisticated systems and objects are complex and tough to understand. High school math is a lot more sophisticated than grammar school math. Driving a car is more sophisticated than riding a bike. People are sophisticated if they have plenty of worldly experience and what is generally regarded as "good taste." Sometimes, that just means they have a lot of money and like things that are fancy. Going to a symphony is considered more sophisticated than going to a rock concert.

Definitions of sophisticated
  1. adjective
    having or appealing to those having worldly knowledge and refinement and savoir-faire
    sophisticated young socialites”
    “a sophisticated audience”
    “a sophisticated lifestyle”
    “a sophisticated book”
    refined and tasteful in appearance or behavior or style
    freed from enchantment
    cosmopolitan, widely distributed
    growing or occurring in many parts of the world
    having much knowledge or education
    able to read and write
    blase, worldly
    very sophisticated especially because of surfeit; versed in the ways of the world
    intelligent, well-informed
    possessing sound knowledge
    polished, refined, svelte, urbane
    showing a high degree of refinement and the assurance that comes from wide social experience
    experienced in and wise to the ways of the world
    secular, temporal, worldly
    characteristic of or devoted to the temporal world as opposed to the spiritual world
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    naif, naive
    marked by or showing unaffected simplicity and lack of guile or worldly experience
    disposed to believe on little evidence
    not informed; lacking in knowledge or information
    childlike, dewy-eyed, round-eyed, simple, wide-eyed
    exhibiting childlike simplicity and credulity
    showing a lack of judgment or experience
    fleeceable, green, gullible
    naive and easily deceived or tricked
    ingenuous, innocent
    lacking in sophistication or worldliness
    lacking subtlety and insight
    unsophisticated, unworldly
    not wise in the ways of the world
    not concerned with the temporal world or swayed by mundane considerations
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  2. adjective
    ahead in development; complex or intricate
    “a sophisticated electronic control system”
    synonyms: advanced
    hi-tech, high-tech
    resembling or making use of highly advanced technology or devices
  3. adjective
    intellectually appealing
    “a sophisticated drama”
    appealing to or using the intellect
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