thickheadedly

English

Etymology

thickheaded +‎ -ly

Adverb

thickheadedly (comparative more thickheadedly, superlative most thickheadedly)

1. In a thickheaded manner
   • 1988 December 9, Jonathan Rosenbaum, “Anything for a Laugh”, in Chicago Reader‎^[1]:

     Here he plays LA cop Frank Drebin, thickheadedly matching his wits against wealthy villain Vincent Ludwig (Ricardo Montalban)--who, for reasons that remain obscure to me, is plotting the assassination of Queen Elizabeth II (played by look-alike Jeannette Charles) at a California Angels baseball game.