Simple past tense and past participle of adhere.(verb)
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Use "adhered" in a sentence
"Diluting the mixture with water will only diminish the quality of the waterproofing roof sealant and hence could cause it to delaminate or become un-adhered from the base surface."
"I posted one last comment, which I am certain adhered to the restrictions."
"Had Britain adhered to her original purpose of moving the United Empire Loyalists to Australia instead of Canada, it is unlikely that this country would exist today as a political unit."