Synonyms and related words :
ascendant, at the head, boss, chief, commanding, controlling, directing, directive, directorial, directory, dominant, general, governing, guiding, head, hegemonic, hegemonistic, in ascendancy, in charge, in chief, in the ascendant, leading, managerial, managing, master, paramount, predominant, predominate, prepollent, preponderant, preponderate, prepotent, prevalent, regnant, regulating, regulative, reigning, ruling, sovereign, supreme