wrongheaded

• wrong-headed

wrong +‎ headed

wrongheaded (comparative more wrongheaded, superlative most wrongheaded)

1. Having an obstinately (persistently, stubbornly) perverse/erroneous opinion or judgement.

   He's not just wrong, but wrongheaded, about raising the kids.

   • 1840, Colburn's New Monthly Magazine and Humorist, volume 60, page 492:

     Reputation—a mere barren reputation, that brings nothing with it, save a post obit bond on posterity—has lost its ancient value: and the panters after posthumous reputation are now closely confined to a few wrongheaded enthusiasts, […]

   • 2010, Jeffrey M. Wooldridge, Econometric Analysis of Cross-Section and Panel Data, 2nd edition, page 286:

     Our view is that discussions about whether the ${\displaystyle c_{i}}$ should be treated as random variables or as parameters to be estimated are wrongheaded for microeconometric panel data applications.

• wrongheadedly
• wrongheadedness