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).
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.