"if not desirable" is correct and usable in written English.
You can use this phrase to indicate that something is not desirable or preferable, usually in contrast to something else. For example, "I would prefer to stay home, if not desirable".
He even seemed to suggest that a narrow defeat today might be acceptable, if not desirable.
In the same way, although the mist has maintained a frail truce between Britons and Saxons, it is clearly right, if not desirable, that historical memory should be restored, even if the cost is a return to old warfare.
Thanks to Facebook and Google — two of what might be dozens of tech companies with compelling coming-of-age stories — we now find it normal, if not desirable, that college kids build the next great economic empire with a few lines of code.
"There can be no doubt that alcohol's constituent elements have become fused with oxygen in the body, that its carbon and hydrogen leave the body as carbonic acid [carbon dioxide and water]." This being the case, he added, it was possible, if not desirable, to consider alcohol a food, for oxidation is invariably accompanied by the release of heat and energy.
Floors are laid in the tents, log huts are built, and their inner walls neatly covered with illustrated papers, and chimneys with capacious fire places erected, rendering the winter home of the soldier, if not desirable, at least a very pleasant residence.
Goldberg said that while the Calgene tomato "is, if not desirable, at least not odious," activists are "not just concerned with first product, but with product number 151 or number 929". She said she is wary of a policy that places the responsibility for assessing a product's risks in the hands of its makers.
Everybody acts as if entertainment is not desirable".
If it is not desirable to use.k5login files located in account home directories, the k5login_directory relation in the [libdefaults] section can specify a directory containing one file per account uname.
Even if this were not desirable from the point of view of the Government's interest in maintaining civil control, it would obviously be to the interests of Lord Kitchener himself, who could hardly wish to be embarrassed with the questions of home politics which will reassert themselves when peace has been obtained.
Stripe, chevron and square patterns in rainbow colors are feasible, even if they're not desirable.
There might be arguments to deviate from the protocol if hydration is not desirable for some reason, but it is important to argument and report these exceptions.
