Antonym of TURBULENT

turbid
violent
steady
critical

The correct answer is: C. steady

A turbulent flow is a flow that is irregular and unpredictable. It is often characterized by eddies, swirls, and other chaotic motions. A steady flow, on the other hand, is a flow that is smooth and predictable. It is characterized by a constant velocity and direction.

The other options are not antonyms of turbulent. Turbid means cloudy or muddy, and it is not the opposite of turbulent. Violent means forceful or aggressive, and it is not the opposite of turbulent. Critical means expressing disapproval or disapproval, and it is not the opposite of turbulent.