/ Dictionary / Index E excitability: Meaning and Definition of Find definitions for: ex•cit•a•bil•i•ty Pronunciation: (ik-sī"tu-bil'i-tē), [key] — n. the quality of being excitable. irritability. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: excitability (Thesaurus) excision excitable Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language