RELATIVISTIC Meaning of RELATIVISTIC in English relativistic BrE AmE ˌrel ət ɪv ˈɪst ɪk ◂ -əvˈ•- AmE \ ˌrel ət̬-▷ relativistic|ally ə l‿i Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012