The phrase "were partial" implies a bias or preference towards a certain person, group, or thing. As such, some possible antonyms for this phrase include words like impartial, unbiased, fair, objective, and even-handed. These terms suggest a more balanced and equitable approach devoid of any favoritism or discrimination. Other possible antonyms could be disinterested, unprejudiced, neutral, or indifferent. These words imply a lack of preference or bias towards any particular option or solution. Overall, the antonyms for "were partial" emphasize the importance of fairness and neutrality in decision-making and problem-solving.