DULL Meaning of DULL in English dull BrE AmE dʌl▷ dulled dʌld▷ duller ˈdʌl ə AmE \ - ə r▷ dullest ˈdʌl ɪst -əst ▷ dulling ˈdʌl ɪŋ▷ dulls dʌlz Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012