-FUL Meaning of -FUL in English -ful (i) suffix to form adjectives, f ə l fʊl ▷ painful ˈpeɪn f ə l, -fʊl ; (ii) suffix to form nouns specifying a quantity, fʊl▷ spoonful ˈspuːn fʊl Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012