ASSIMILATIVE Meaning of ASSIMILATIVE in English assimilative BrE AmE ə ˈsɪm ə l ət ɪv -ə leɪt ɪv AmE \ -ə leɪt̬ ɪv - ə l ət̬- ▷ assimilative|ly li Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012