verb (used without object), sib·i·lat·ed, sib·i·lat·ing.
verb (used with object), sib·i·lat·ed, sib·i·lat·ing.
to utter or pronounce with a hissing sound.
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whisper, disapprove, hoot, whiz, deride, condemn, blow, decry, damn, rasp, shrill, mock, fizz, sizzle, spit, whistle, revile, wheeze, catcall, swish
Origin of sibilate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
to pronounce or utter (words or speech) with a hissing sound
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
1650s, from Latin sibilatus, past participle of sibilare "to hiss, whistle" (see sibilant (adj.)). Related: Sibilated; sibilating.
Online Etymology Dictionary, © 2010 Douglas Harper