鈍にぶい

1. 1dull (e.g. a knife) ; blunt
2. 2thickheaded ; obtuse ; stupid
3. 3dull (sound, color, etc.) ; dim (light)
4. 4slow ; sluggish ; inert ; lethargic
5. 5insensitive ; dull (e.g. reflexes) ; unperceptive ; unfeeling

JMdict entry 1582430 · frequency rank 30. Source and licence.