Simple past tense and past participle of season.(verb)
Experienced, especially in terms of a profession or a hobby(adjective)
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Use "seasoned" in a sentence
"His group wants it replaced by what he described as seasoned and well-trained police officers."
"She will have a team of what they call seasoned campaign veterans, who are experts at rapid response."
"Probably at its best rolled in seasoned flour, deep-fried in old peanut oil, and covered in tartar or hot sauce, in a hoagie bun ... with a hoppy beer chaser."