Origin: Latin suffix -ive
Obstructive has 3 different meanings across 1 category:
One who obstructs something.
"The committee voted to remove the most obstructive member because he constantly blocked every proposal from moving forward."
preventing movement
"the clogging crowds of revelers overflowing into the street"
Causing obstructions.
"The new traffic lights were installed to prevent drivers from obstructing the emergency lane."