omnipotent UK /ɒmˈnɪp.ə.tənt/US /ɑmˈnɪp.ə.tənt/adjective 3noun 1forms 3 adjective3 •Having unlimited power, force or authority.And I heard as it were the voice of a great multitude, and as the voice of many waters, and as the voice of mightie thundrings, saying, Alleluia: for the Lord God omnipotent reigneth. — 1611 •Describing a cell (especially a stem cell) that is capable of developing into any type of cell or forming any type of tissue (also called a totipotent cell). •(no longer used) Arrant. noun1 •An omnipotent being. formsomnipotents · more omnipotent · most omnipotent