Word Study
obstructive
CIDE DICTIONARY
obstructive, a. [Cf. F. obstrictif.].
Tending to obstruct; presenting obstacles; hindering; causing impediment. [1913 Webster]
obstructive, n.
An obstructive person or thing. [1913 Webster]
OXFORD DICTIONARY
obstructive, adj. & n.
--adj. causing or intended to cause an obstruction.
--n. an obstructive person or thing.
--adj. causing or intended to cause an obstruction.
--n. an obstructive person or thing.
Derivative
obstructively adv. obstructiveness n.
THESAURUS
obstructive
choking, complaining, constrictive, contrary, counterproductive, crosswise, disputatious, disputing, dissentient, dissenting, fractious, hindering, hindersome, in the way, inhibiting, inhibitive, interrupting, interruptive, noncooperative, objecting, obstructing, obstruent, occlusive, on the barricades, proof against, protesting, rebellious, recalcitrant, refractory, reluctant, renitent, repellent, repressive, resistant, resisting, resistive, restrictive, retardant, retardative, stifling, strangling, suppressive, troublesome, uncooperative, unsubmissive, unyielding, up in arms, withstandingROGET THESAURUS
obstructive
Hindrance
N hindrance, prevention, preclusion, obstruction, stoppage, embolus, embolism, infarct, interruption, interception, interclusion, hindrance, impedition, retardment, retardation, embarrassment, oppilation, coarctation, stricture, restriction, restraint, inhibition, blockade, interference, interposition, obtrusion, discouragement, discountenance, impediment, let, obstacle, obstruction, knot, knag, check, hitch, contretemps, screw loose, grit in the oil, bar, stile, barrier, turnstile, turnpike, gate, portcullis, beaver dam, trocha, barricade, wall, dead wall, sea wall, levee breakwater, groyne, bulkhead, block, buffer, stopper, boom, dam, weir, burrock, drawback, objection, stumbling-block, stumbling-stone, lion in the path, snag, snags and sawyers, encumbrance, incumbrance, clog, skid, shoe, spoke, drag, drag chain, drag weight, stay, stop, preventive, prophylactic, load, burden, fardel, onus, millstone round one's neck, impedimenta, dead weight, lumber, pack, nightmare, Ephialtes, incubus, old man of the sea, remora, difficulty, insuperable, obstacle, estoppel, ill wind, head wind, trammel, tether, hold back, counterpoise, damper, wet blanket, hinderer, marplot, killjoy, party pooper, party crasher, interloper, trail of a red herring, opponent, hindering, obstructive, obstruent, impeditive, impedient, intercipient, prophylactic, impedimentary, in the way of, unfavorable, onerous, burdensome, cumbrous, cumbersome, obtrusive, hindered, windbound, waterlogged, heavy laden, hard pressed, unassisted &c (assist), single-handed, alone, deserted, occurrent nubes.Opponent
N opponent, antagonist, adversary, adverse party, opposition, enemy, the other side, assailant, oppositionist, obstructive, brawler, wrangler, brangler, disputant, filibuster, obstructionist, malcontent, Jacobin, Fenian, demagogue, reactionist, rival, competitor, bete noir.For further exploring for "obstructive" in Webster Dictionary Online