The antonyms for the phrase "was partial" are "was impartial," "was unbiased," "was fair," and "was objective." Being partial means having a bias towards a particular person or thing, while the antonyms indicate being neutral and free from any preconceived notions. It is crucial to be impartial while making decisions, delivering judgments, or providing feedback. Being unbiased ensures that everyone is treated equally and given fair opportunities, regardless of their background or preferences. An impartial attitude also promotes trust and respect, which are essential for creating a harmonious and inclusive environment, whether it is in a workplace, community, or society in general.