When someone is accused of domineering over another, it often implies that they have a tendency to exercise excessive control or exercise their authority in an oppressive or abusive manner. Some synonyms for 'domineer over' that can be used instead are "bullied," "rule over," "oppress," "boss around," "dictate," "intimidate," "overpower," and "tyrannize." These words all suggest an unequal power dynamic where one person holds more authority and influence over the other. It's essential to recognize domineering behavior and strive for healthier, more egalitarian relationships that prioritize mutual respect and consent.