He acted very obstructively when we tried to carry out our project.    From Wordnet, Princeton University. 

Verb (used with object) : Debris obstructed the road.    From Dictionary.com. 

One hopes that they'll use their presence constructively, not obstructively.    From Wordnik.com.  [Jonathan Handel: SAG National Executive Director Firing -- How it Went Down] Reference

Their mental disposition was often obstructively critical and insubordinate.    From Wordnik.com.  [The Shape of Things to Come] Reference

By defensively and obstructively making the process more difficult, the government had landed up pointing the finger back at itself.    From Wordnik.com.  [ANC Daily News Briefing] Reference

We must lay hold upon and set to work for a higher civilization the motives and purposes that in the past have worked obstructively, and now destructively.    From Wordnik.com.  [The Psychology of Nations A Contribution to the Philosophy of History] Reference

Shô (or: sô), meaning “sound,” is the breath of Dainichi, the vibrations of the five material elements in their mutually non-obstructively colliding interplay that resonate sounds through the air.    From Wordnik.com.  [Laughter] Reference

After a while he abandoned this one as well as being obstructively cynical and decided he quite liked human beings after all, but he always remained desperately worried about the terrible number of things they didn't know about.    From Wordnik.com.  [The Hitchhiker's Guide to the Galaxy]

The only way Democrats could have any power would be by acting as obstreperously and obstructively as possible, to prevent more damage, by using their investigative power in the House to lay out the crimes of this administration as clearly as possible.    From Wordnik.com.  [Election Postmortem: What's Next?] Reference

Never was cart put more obstructively before horse than when.    From Wordnik.com.  [Art] Reference

"He can remember quite well when he is hypnotized," she said obstructively.    From Wordnik.com.  [The Return of the Soldier] Reference

It rules India ignorantly and obstructively; it will wreck the empire rather than relinquish its ascendancy in.    From Wordnik.com.  [War and the future: Italy, France and Britain at war] Reference

Still, when compared to other RPGs available on the DS, it rates right about on par since it does nothing extremely well nor obstructively poorly; the best that can be said about.    From Wordnik.com.  [RPGamer] Reference

Fragments of old wall, saint's chapel, chapter-house, convent and monastery, have got incongruously or obstructively built into many of its houses and gardens, much as kindred jumbled notions have become incorporated into many of its citizens 'minds.    From Wordnik.com.  [The Mystery of Edwin Drood] Reference

And, because nothing stands more obstructively between the public and the grand æsthetic ecstasies than the habit of feeling a false emotion for a pseudo-work-of-art, he must be as remorseless in exposing shams as a good schoolmaster would be in exposing charlatans and short-cuts to knowledge.    From Wordnik.com.  [Since Cézanne] Reference

"They are subjected by Notre Dame to the criminal process because they came, as individuals, to Notre Dame to pray, peacefully and non-obstructively, on this ordinarily open campus, in petition and reparation, as a response to what they rightly saw as a facilitation by Notre Dame of various objectively evil policies and programs of Notre Dame's honoree, President Obama.".    From Wordnik.com.  [LifeSiteNews.com Headlines] Reference

The pervasive, impersonal, un-eager principle of futility is at hand from day to day and works obstructively to hinder the effectual expression of so much of the surviving ante-predatory aptitudes as is to be classed under the instinct of workmanship; but its presence does not preclude the transmission of those aptitudes or the continued recurrence of an impulse to find expression for them.    From Wordnik.com.  [Theory of the Leisure Class] Reference

Fragments of old wall, saint's chapel, chapter-house, convent and monastery, have got incongruously or obstructively built into many of its houses and gardens, much as kindred jumbled notions have become incorporated into many of its citizens "minds.    From Wordnik.com.  [The Mystery of Edwin Drood] Reference