Spiky

a.	1.	Like a spike; spikelike. These spiky, vivid outbursts of metallic vapors. - C. A. Young.
	2.	Having a sharp point, or sharp points; furnished or armed with spikes. Or by the spiky harrow cleared away. - Dyer. The spiky wheels through heaps of carnage tore. - Pope.

Adj.

1.

spiky - having or as if having especially high-pitched spots; "absence of peaky highs and beefed-up bass" Synonyms: peaky

high, high-pitched, peaky