1. the state or quality of having committed a wrongdoing or crime; culpability
2. the feeling of shame or remorse for having done something wrong

Examples

• The jury determined the defendant's guiltiness beyond a reasonable doubt.
• She felt a deep guiltiness after lying to her parents.
• His guiltiness was evident from his nervous behavior during the trial.
• The evidence pointed to his guiltiness in the theft.
• She struggled with guiltiness over missing her friend's birthday.
• The witness testified about the suspect's guiltiness in the crime.