Simple past tense and past participle of bristle.(verb)
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Use "bristled" in a sentence
"Tomlin bristled when reminded of that comment during last weekend's minicamp."
"Now, though, the name bristled with accent marks, thus: Gédéon Goré."
"Every word bristled with a new meaning, and, becoming deeply interested after reading the last two verses of Matthew, he began the book of Mark and did not leave it until he reached the end."