/ əbˈstrʌktɪv; NAmE / adjective
1.
trying to prevent sb/sth from making progress :
Of course she can do it. She's just being deliberately obstructive.
—compare constructive
2.
[ only before noun ] ( medical ) connected with a passage, tube, etc. in your body that has become blocked :
obstructive lung disease
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WORD ORIGIN
early 17th cent.: from obstruct + -ive .