Wordnet 3.0
ADJECTIVE (1)
1. 
 (usually followed by `to') full of eagerness; 
- Example: "impatient to begin"- Example: "raring to go"[syn: impatient(p), raring(p)]
WordNet (r) 3.0 (2006):
raring
    adj 1: (usually followed by `to') full of eagerness; "impatient
           to begin"; "raring to go" [syn: impatient(p),
           raring(p)]