/ Dictionary / Index S spiky: Meaning and Definition of Find definitions for: spik•y Pronunciation: (spī'kē), [key] — spik•i•er, spik•i•est. having a spike or spikes. having the form of a spike; spikelike. acid or peevish in temper or mood; prickly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spiky (Thesaurus) spike-tooth harrow spile Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language