Sophisticated
/səˈfɪstəˌkeɪtɪd/
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Definition
(adj) Of a person: having obtained worldly experience, and lacking naiveté; cosmopolitan, worldly-wise.
Sentence Examples
The engineer demonstrated how to operate the sophisticated system.
The readers of that book think themselves sophisticated.
CEFR Practice Quiz
The new security system is very ____ and includes facial recognition as well as fingerprint scanning.