The principal drawbacks are related to the difficulties in obtaining high porosity and regular pore size.

One of the principal drawbacks of freedom is that it is inherently vulnerable to attack.

Their principal drawback lay in their informality, which demanded the constant supervision of an active King.

So there's no little irony in the fact that Ms. Plunkett turns out to be the evening's principal drawback.

The principal drawback to the blood knot is the dexterity required to tie it.

That they achieve it may be the evening's chief accomplishment and its principal drawback: there just aren't a whole lot of surprises here.

The principal drawback was that Mozambique Island was parched and infertile.

The principal drawback with ATNs is the complexity that arises when a system becomes large.

The principal drawback, however, is that people have to be informed about how this type of building operates.

George Prescott wrote: "The principal drawback at present is the large size of the apparatus."