Simple past tense and past participle of loosen.(verb)
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Use "loosened" in a sentence
"Their hut stood at the end of the village, beyond it spread the bleak moor, now all white and silent; but that moor had once been a forest, great roots of old trees were still to be found in it, loosened from the soil and laid bare by the winds and rains."
"It will be a mortal blow if there is a single palm missing on Monte Chiaro or if a single stone has loosened from the town wall."
"Then he had discovered that big stones had loosened from the dome just over the image."