1. the quality or state of being partial; the condition of favoring one side, person, or group over another; bias or prejudice
Usage: plural form of partiality; formal or academic register
2. the quality of being incomplete or affecting only part of something; incompleteness
Usage: less common sense; formal or technical register

Examples

• The judge was criticized for the partialnesses shown in her rulings.
• The committee's partialnesses toward certain candidates undermined the fairness of the selection process.
• His partialnesses for classical music over modern genres were well known among his friends.
• The report exposed the partialnesses in how the data had been analyzed.
• Despite claims of objectivity, the investigation revealed multiple partialnesses in the evidence gathering.
• The partialnesses of the media coverage became apparent when comparing different news outlets.