Comparative form of prickly: more prickly(adjective)
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Use "pricklier" in a sentence
"The debate's exchanges at Drake University were a bit sharper and pricklier than in this year's previous Republican debates."
"Metzenbaum, a pricklier personality in a pricklier time, is unlikely to enjoy a similar honor."
"On the pricklier side, some in Germany suspect that, in an effort to highlight his recent push for a refocusing of U.S. energies away from Iraq and onto Afghanistan, he may call for increased German support there."