obtuse

discern learn derstan

obtuse adj.

鈍的, 圓頭的, 愚蠢的, 遲鈍的

英英解釋:形容詞obtuse:
1. of an angle; between 90 and 180 degrees
2. of a leaf shape; rounded at the apex
3. lacking in insight or discernment- Jasper Griffin
同義詞：purblind
4. slow to learn or understand; lacking intellectual acuity
同義詞：dense, dim, dull, dumb, slow