rish·i (r?sh??, r??sh?)n. pl. rish·is In Hinduism, a divinely inspired poet or sage, sometimes regarded as a saint.[Sanskrit ??i?; see ers- in Indo-European roots.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.rishi (?r???) n (Hinduism) a Hindu seer or sage, or, earlier, a Vedic poetCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014