Characteristic of a cretin; very stupid.(adjective)
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Use "cretinous" in a sentence
"Mr. McBride, on the other hand, is fast wearing out his welcome with a character type who, with a deep-fried accent and a pudd'nhead, could be called the cretinous cracker."
"I believe that all religions should be objects of ridicule until they repudiate in no uncertain terms the cretinous pissheads that claim religious justification for the slaughter and persecution we see around us."
"I left Legion still amazed that two people working together could create this kind of cretinous half-baked drivel."