Adjective
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having or covered with protective barbs or quills or spines or thorns or setae etc.
"a horse with a short bristly mane"
"bristly shrubs"
"burred fruits"
"setaceous whiskers"
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very irritable
"bristly exchanges between the White House and the press"
"he became prickly and spiteful"
"witty and waspish about his colleagues"