Simple past tense and past participle of idle. (verb)
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Use "idled" in a sentence
"When the prairie droughts of the late 80s and early 90s ended and rains came to the Midwest, wetland basins in idled grass fields made excellent waterfowl nesting habitat and duck populations came back as well."
"His sword idled by temporary peace, an ancient legend may yet gain him the Throne."
"Borealis Carbon is a consortium of employee-owned-and-operated businesses anticipating reduced demand for their professional services from the forest industry, not "idled" mill or forestry operations workers."