There are relatively substantial barriers to the use of some of these provisions.

The mask concealing that identity was the one remaining substantial barrier.

There must be substantial barriers to entry for new competitors.

Reflecting the substantial barriers to international integration, prices have not come to an equilibrium across countries.

It did not seem like a substantial barrier to potential eavesdroppers.

In this case, the regulatory hurdle for drug approval may prove a substantial barrier to new competition.

Though most companies want more cross-selling, there can be substantial barriers:

The most substantial barriers will be removed from day one of the agreement.

The contract appears to pose substantial barriers to any takeover.

Such epidemiological evidence "should make us feel safe that there's a substantial barrier," he said, noting the small number of people who have been infected.