ee·rie or ee·ry (îr??)adj. ee·ri·er, ee·ri·est 1. Inspiring inexplicable fear, dread, or uneasiness; strange and frightening. See Synonyms at weird.2. Scots Frightened or intimidated by superstition.[Middle English eri, fearful, from Old English earg, cowardly.]ee?ri·ly adv.ee?ri·ness n.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.eerie or eeryadj, eerier or eeriest(esp of places, an atmosphere, etc) mysteriously or uncannily frightening or disturbing; weird; ghostly[C13: originally Scottish and Northern English, probably from Old English earg cowardly, miserable] ?eerily adv ?eeriness nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014ee?rie or ee?ry (???r i) adj. -ri?er, -ri?est. 1. uncanny, so as to inspire superstitious fear; strange and mysterious: an eerie howl. 2. Chiefly Scot. affected with superstitious fear. [1250?1300; Middle English eri, dial. variant of argh, Old English earg cowardly; c. Old Frisian erg, Old High German ar(a)g cowardly Old Norse argr evil] ee?ri?ly, adv. ee?ri?ness, n. syn: See weird. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.