conventional
US /kənˈven.ʃən.əl/
UK /kənˈven.ʃən.əl/

1.
based on or in accordance with what is generally done or believed
:
•
She prefers conventional methods of teaching.
•
The company uses conventional energy sources.
2.
lacking originality or individuality
:
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His writing style is rather conventional and uninspired.
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The decor of the hotel was very conventional, nothing special.