/ Dictionary / Index I instil: Meaning and Definition of Find definitions for: in•stil Pronunciation: (in-stil'), [key] — -stilled, -stil•ling. instill. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: instil (Thesaurus) instigation instill Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language