'refrain entirely' is correct and can be used in written English.
You can use this phrase when you want to indicate that someone should not do something at all. For example: "She was advised to refrain entirely from drinking caffeine after 7 PM."
First, it's intrinsically controversial, since A.A. for a long time expected its participants to refrain entirely from drug use, even prescription pills.
To avoid stalling in the middle, cable cars had to enter the curve at a furious speed and refrain entirely from braking, often striking unwary vehicles and pedestrians caught in their path.
Plus, if a puppy or kitten is in the picture with you, it's obviously OK; however, I highly recommend keeping selfies of solely yourself to a minimum -- or, to be safe, just refrain entirely.
With 'and/or the subject' we refer to the fact that upon debriefing, some of our participants reported finding it hard to refrain entirely from interpreting the gestures in the passive viewing condition.
To please him, she refrained entirely from speaking Italian one evening when they went to a restaurant for dinner.
But today, while holding perhaps his most successful fund-raising session, he refrained entirely from mentioning his newfound "priority" of eliminating the large, unregulated contributions known as soft money.
Respect for the saint did not mean that Malcolm refrained entirely from raiding the north; he was killed in 1093 while once more raiding Northumbria.
Mr. Romney did not entirely refrain from jabbing at the president.
He preferred diplomacy to war, though he did not entirely refrain from the latter, as shown by a series of forced occupations of foreign territory, notably Red Russia (eastern Galicia), in 1340 and 1349.
They offer up "f" at one point, but refrain from using "slutbag" entirely.
He did not mean that there had been a "golden age" in which governments entirely refrained from interfering in the private sector.
