鈍い
Readings
                Kana: 
                にぶい、のろい
            
                    
                Romaji: 
                nibui, noroi
            
            Definitions
                    1
                
                dull (e.g. a knife); blunt
                    2
                
                thickheaded; obtuse; stupid
                            Note: 
                            のろい is usu. in kana
                        
                                                                                                                    
                    3
                
                dull (sound, color, etc.); dim (light)
                    4
                
                slow; sluggish; inert; lethargic
                    5
                
                indulgent (esp. to the opposite sex); doting
Kanji
Readings: ドン、 にぶ.い、 にぶ.る、 にぶ-、 なま.る、 なまく.ら
                        Meanings: dull, slow, foolish, blunt