1. the quality or state of being averse; reluctance or opposition to something
Usage: formal; often used in psychology and behavioral contexts
2. in psychology and neuroscience, the degree to which a stimulus or situation is perceived as unpleasant or to be avoided
Usage: technical; behavioral science

Examples

• Her aversiveness to public speaking made the presentation difficult.
• The aversiveness of the punishment was meant to discourage the behavior.
• Researchers measured the aversiveness of different stimuli in the experiment.
• His aversiveness to change kept him from accepting the new job offer.
• The drug's aversiveness to taste made it hard for patients to take regularly.
• Studies show varying degrees of aversiveness to different types of criticism.