Having (something) spread throughout, as if by an infestation.(adjective)
Simple past tense and past participle of riddle.(verb)
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Use "riddled" in a sentence
"That finding suggests loneliness might be triggering dementia through a novel mechanism — one that doesn't lead to a brain riddled with deposits, Wilson says."
"The price that is paid is that good men devoted to true American ideals get dragged down by a word riddled with corporate sell-outs, theocrats, loudmouths, and Nazis."
"Not only do this pair play it straight they also tend to ask questions in a manner the man in the street might and pull people up when they lapse into jargon riddled nonsense."