apprehensive
Feeling nervous or worried about something that might happen.
Apprehensive means feeling worried or anxious about something that might happen in the future. When you're apprehensive, you feel genuinely nervous about what's coming next, beyond just curiosity or uncertainty.
You might feel apprehensive before giving a presentation in front of the whole class, even if you've practiced your speech many times. A swimmer might feel apprehensive standing at the edge of the high dive for the first time, wondering if they'll execute the jump correctly. Someone moving to a new school might feel apprehensive about making friends, even though they're also excited about the fresh start.
The word captures that particular feeling of worry mixed with anticipation. It's different from being terrified or panicked. When you're apprehensive, you're still able to move forward and face whatever's ahead, but you're doing it with butterflies in your stomach. You might notice your heart beating a little faster or your palms getting sweaty.
Being apprehensive is completely normal. Most people feel apprehensive before trying something new or challenging, and that feeling doesn't have to stop you from doing things that matter or that could turn out to be great experiences.