Apprehensive/ˌæprɪˈhensɪv/ Definition 1 of 2Pro Tip 1/3Nuance of Uncertainty Expresses fear or concern about something that hasn't happened yet, but might. He was apprehensive about the weather forecast for the camping trip. Pro Tip 2/3Not Always Negative Can imply a sense of cautious optimism or curiosity, not just fear. She felt apprehensive yet excited about studying abroad. Pro Tip 3/3Intensity of Feeling Indicates a milder form of fear compared to 'terrified' or 'horrified'. The audience was slightly apprehensive before the controversial play began.