Instill In*still", v. t. [imp. & p. p. Instilled; p. pr. & vb. n. Instilling.] [L. instillare, instillatum; pref. in- in + stillare to drop, fr. stilla a drop: cf. F. instiller. See Distill.] [Written also instil.] To drop in; to pour in drop by drop; hence, to impart gradually; to infuse slowly; to cause to be imbibed. That starlight dews All silently their tears of love instill. --Byron. How hast thou instilled Thy malice into thousands. --Milton. Syn: To infuse; impart; inspire; implant; inculcate; insinuate.