Spiky (adjective)
Having spikes, spiny.
Spiky (adjective)
hostile; standoffish
“a spiky personality”
Spikey (adjective)
alternative form of spiky
Wiktionary
Spiky (adjective)
having many spikes or sharp projecting points
“a spiky cactus”
Spiky (adjective)
resembling a spike or spikes
“his hair was dark and spiky”
“wear pencil skirts with spikey heels”
Spiky (adjective)
easily offended or annoyed
“she sounded spiky and defensive”
“he’s a quality player but he’s got a bit of a spikey attitude”
Oxford Dictionary