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obtuse

1 ENTRIES FOUND:
obtuse /ɑbˈtuːs/ Brit /ɒbˈtjuːs/ adjective
obtuse
/ɑbˈtuːs/ Brit /ɒbˈtjuːs/
adjective
Britannica Dictionary definition of OBTUSE
[more obtuse; most obtuse]
formal : stupid or unintelligent : not able to think clearly or to understand what is obvious or simple
mathematics : not ending in a sharp point : measuring between 90 degrees and 180 degrees compare acute 6

— obtuseness

noun [noncount]