/ Dictionary / Index A ambisinister: Meaning and Definition of Find definitions for: am•bi•sin•is•ter Pronunciation: (am"bi-sin'u-stur), [key] — adj. clumsy or unskillful with both hands. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ambisexual ambisonics Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language