The Collaborative International Dictionary of English v.0.48:
Interruptive \In`ter*rupt"ive\, a.
Tending to interrupt; interrupting. "Interruptive forces."
--H. Bushnell. -- In`ter*rupt"ive*ly, adv.
Moby Thesaurus II by Grady Ward, 1.0:
26 Moby Thesaurus words for "interruptive":
choking, constrictive, contrary, counterproductive, crosswise,
hindering, hindersome, in the way, inhibiting, inhibitive,
interfering, interrupting, intervenient, intrusive, invasive,
obstructing, obstructive, obstruent, obtrusive, occlusive,
repressive, restrictive, stifling, strangling, suppressive,