1. to block, hinder, or prevent the growth, development, or spread of something
New regulations obstruct expansion of the company into foreign markets.
Novas regulamentações obstruem a expansão da empresa em mercados estrangeiros.
2. to create barriers that impede or slow down enlargement or extension
High taxes obstruct expansion of small businesses.
Altos impostos obstruem a expansão de pequenos negócios.