Adjective: apprehensive ,ap-ri'hen-siv
- In fear or dread of possible evil or harm
"apprehensive for one's life"; "apprehensive of danger"
- Mentally upset over possible misfortune or danger etc
"apprehensive about her job"; "felt apprehensive about the consequences";
- worried
- Quick to understand
"a kind and apprehensive friend";
- discerning
See also: afeard [archaic], afeared [archaic], afraid, 'fraid [non-standard], perceptive, uneasy