/ Dictionary / Index I instill: Meaning and Definition of Find definitions for: in•still Pronunciation: (in-stil'), [key] — v.t. to infuse slowly or gradually into the mind or feelings; insinuate; inject: to instill courtesy in a child. to put in drop by drop. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: instill (Thesaurus) instil instillation Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language