spikier; spikiest
1
: having sharp points : formed into points
He has short, spiky [=spiked] hair.
a plant with spiky leaves
2
British, informal
: tending to become angry or annoyed easily
He has a spiky personality.
Cite this Entry
“Spiky.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/spiky. Accessed 10 Jul. 2026.
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