Obstructive

Because it inflames upper-airway tissues, smoking often leads to obstructive sleep apnoea. Alcohol and sedatives can worsen apnoea as well; acting as muscle relaxants, they make the airway smaller.

The researchers say the cells might be responsible for the chemical hypersensitivity that characterizes respiratory diseases such as chronic obstructive pulmonary disease (COPD) and asthma.

COPD, chronic obstructive pulmonary disease, blocks airflow through the lungs.

I wanted to see his report on me, but my manager was being obstructive.

The obstructive tendency attributed to the knot in spiritual matters appears in a Swiss superstition that if, in sewing a corpse into its shroud, you make a knot on the thread, it will hinder the soul of the deceased on its passage to eternity.