Simple past tense and past participle of shutter.(verb)
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Use "shuttered" in a sentence
"He shifted to face her more squarely and stood very tall and erect, his expression shuttered and cold."
"It was one of many niche labels shuttered or downsized in Hollywood recently, plagued by high costs and few commercial hits despite their occasional critical success."
"I think most of the mid-city locations remain shuttered (the CC's on Esplanade, oddly, seems to have given up the ghost even though it had little or no flooding - last time I drove by it appeared to be completely empty with no signs of life whatsoever)."