Definition of "annihilative" [an•ni•hi•la•tive]

• Capable of causing utter destruction or serving to destroy utterly: "The possession of annihilative power has not slowed down the drive toward even more fiendish modes of inflicting wholesale death” ( Saturday Review). (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Demonstrating warp-drive capacity—which really amounts to little more than sustaining and harnessing the mutually annihilative reaction of matter and antimatter, as the Hranrarii have done—is what determines whether a culture has attained warp capability."
• "JH, Iran is a hyper-aggressive, annihilative, nuclear-armed theocratic Islamic regime in the Middle East."
• "Indeed, their very power has made their use intolerable, even unthinkable, because of the annihilative retaliation in kind that such use would invoke."