From Longman Dictionary of Contemporary Englishobtuseob‧tuse /əbˈtjuːs $ -ˈtuːs/ adjective formal STUPID/NOT INTELLIGENTslow to understand things, in a way that is annoying ‘But why?’ said Charles, being deliberately obtuse. —obtuseness noun [uncountable]
Examples from the Corpus
obtuse• He is a renowned and honourable man, but with regard to this matter he is either being naive or obtuse.• How today's youngsters are obtuse!• Heather tried to be as obtuse as she could.• Maybe I'm being obtuse, but I don't understand what you're so upset about.• Even the deeply obtuse can be seized by kamikaze zeal.• The oral shields is a rounded pentagonal with an obtuse or slightly rounded proximal angle.• The oral shield is rhombic but often with an obtuse proximal angle and a convex distal edge.• The ventral arm plates are wider than long, pentagonal with an obtuse proximal angle and a slightly convex distal edge.Origin obtuse (1500-1600) Latin obtusus “blunt”, from obtundere “to beat against, make blunt” 