Adjective: obstructive ub'strúk-tiv
- Preventing movement
"the obstructive crowds of revelers overflowing into the street";
- clogging, hindering, impeding
- Intentionally unaccommodating
"the action was not offensive to him but proved somewhat obstructive";
- disobliging, uncooperative
See also: preventative, preventive, unaccommodating, unobliging