obtuse

Meanings

• of an angle; between 90 and 180 degrees
• (of a leaf shape) rounded at the apex
• lacking in insight or discernment; ; - Jasper Griffin
  • "too obtuse to grasp the implications of his behavior"
• slow to learn or understand; lacking intellectual acuity; ; ; - Thackeray
  • "he was either normally stupid or being deliberately obtuse"

Synonyms

dense, dim, dull, dumb, purblind, slow