the.com/obtuse
willfully missing the point, at an angle wider than 90 degrees.
means slow to understand or deliberately unclear, whether describing a person's thinking or an angle that leans too far back.
from from latin obtusus, meaning blunted or dull, past participle of obtundere, to beat against — the same root gives us obtund and contusion, so calling someone obtuse literally means calling them blunt-headed.
geometry firstmeant wide angles before it meant dull minds
insult upgradesounds smarter than calling someone dense
often self-inflictedcan mean refusing to get it, not failing to
false friendabstruse means hard to understand, not the same word