/ Dictionary / Index I insignificancy: Meaning and Definition of Find definitions for: in•sig•nif•i•can•cy Pronunciation: (in"sig-nif'i-kun-sē), [key] — pl. -cies insignificance. an insignificant person or thing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. insignificance insignificant Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language