obtuser
形容词 obtuse:
of an angle; between 90 and 180 degrees
同义词:obtuse
of a leaf shape; rounded at the apex
同义词:obtuse
lacking in insight or discernment- Jasper Griffin
同义词:obtuse, purblind
slow to learn or understand; lacking intellectual acuity
同义词:dense, dim, dull, dumb, obtuse, slow